Token leakage via host header poisoning hackerone. This vulnerability found on hackerone Plateform.

Token leakage via host header poisoning hackerone Once the victim clicks on the poisoned link, the attacker will receive a request to his/her domain with the victim’s password reset token visible in the referer header. When the victim receives the password reset email and clicks the link, their reset token is sent to the attacker’s server instead of the legitimate application. This token had read and write access to Shopify-owned GitHub repositories. 2. frontegg. HPP /HTTP parameter pollution): [email protected] & [email protected] Carbon copy: [email protected] %0a Host Header Injection Attack - irccloud. Check List Host Header Injection Password Reset Function Double Host Header Injection Password Reset Function X-Forwarded-Host Header Injection Password Reset Check if host header is changed to attacker. Assess the target using an intercepting proxy to identify if the referral header leaks the token through the referral header. net. Token Leakage via Host Header Poisoning. In this instance, an Open Redirect vulnerability was utilized to exploit the fact that the full URI is shared in the Referer header when going from Rockstar-owned domains to other Rockstar Jun 24, 2025 · Description Kanboard is project management software that focuses on the Kanban methodology. Token leakage in response/JS files - Search for the password reset token in the response of the request or in JS files. ) @bombon reported to us a web cache poisoning issue that led to caching of gdToken(Anti-CSRF token) across different Glassdoor pages and in some instances could be chained to perform XSS by caching the XSS payload. to Shopify - 8 upvotes, $500 A security researcher discovered that sensitive information, like password reset tokens could still be leaked to analytics services like Google Analytics or via the Referer [sic] header. ##Steps To Reproduce: 1) Request a password reset link Aug 30, 2022 · Account Takeover Summary Password Reset Feature Password Reset Token Leak Via Referrer Account Takeover Through Password Reset Poisoning Password Reset Via Email Parameter IDOR on API Parameters Weak Password Reset Token Leaking Password Reset Token Password Reset Via Username Collision Account takeover due to unicode normalization issue Account Takeover Via Cross Site Scripting Account The HTTP referer header may leak the password reset token if it's included in the URL. #Reproduction Instructions / 1) Nov 21, 2024 · The value of headers such as X-Forwarded-Host can be used to construct these source URLs. Firstly, let’s understand what SSRF and Host Header Injection are. From here, when the user clicks on the password reset link sent to their email, the attacker can capture the the token and reset a user’s password, locking the user out of their account and achieving full account takeover. Jan 10, 2024 · Hi I Found a host header injection on a Hackerone target frontegg which lead to open redirect and cache poisoning let’s start Target:portal. Join Medium for free to get updates from this writer. Password Reset Token Leak Via Referrer The HTTP referer is an optional HTTP header field that identifies the address of the webpage which is linked to the resource being requested. Jul 12, 2020 · The wp-json implementation on some WordPress websites I've tested is vulnerable to Denial-of-service where by an attacker can provide an arbitrary origin header in the request, which is then echoed back in the response via the Access-Control-Allow-Origin header, which is cached and served to other requests. evilsite. ## Summary Concrete5 uses the `Host` header when sending out password reset links. For example: In this report, the researcher discovered that there was a cache poisoning weakness on `updates. Exploitation: To check if a password reset token is leaking in the referer header, request a password reset to your email This allows an attacker to insert a malicious host header, leading to password reset link / token leakage. Observe that a link containing a unique reset token is sent via email. Please replace *all* the [square] sections below with the pertinent details. #Steps Feb 22, 2021 · U. Notice that the X-Forwarded-Host header is supported and you can use it to point the dynamically generated reset link to an arbitrary domain. com An attacker can manipulate the Host header as seen by the web application and cause the application to behave in unexpected ways. OAuth Missing/Broken State Parameter Sensitive Token in URL Token Leakage via Referer Weak Password Reset Implementation - Token Leakage via Host Header Poisoning V2 - Authentication V3 - Session management V5 - Validation / Sanitization. com Open burpsuite and capture the first request Apr 10, 2022 · 2> Password reset token leakage via Host Header Poisoning Instead of the token being leaked in the referrer, in this attack the victim is directed to the attacker’s evil web application using This vulnerability raised when a website uses the Host header when sending out password reset links. com and whether or not token is leaking to the attacker P2-Token Leakage Via Host Header Poisoning (Weak password Reset Implementation) Vulnerability Category: A3- Sensitive Data Exposure gaya3-r. Jun 1, 2025 · A $3,000 PlayStation Report Walkthrough (HackerOne #835437) In this article, we’ll walk through a clever token smuggling bug in my. Developers often resort to the exceedingly untrustworthy HTTP Host header (_SERVER ["HTTP_HOST"] in PHP or in another languages In this case it was found that the Token is being leaked to third party sites which is a issue knowing the fact that it can allow any malicious users to use the reset password of user. This is a result of DNS cache poisoning. The exposed tokens were used in the POST request to solve the CAPTCHA. This response header is used by browsers to determine whether the requesting origin is Jul 1, 2024 · Introduction In the world of web security, even small problems can lead to big issues. May 17, 2021 · Password reset token leak via referer The HTTP referrer is an optional HTTP header field that identifies the address of the webpage which is linked to the resource being requested. ## Steps To Reproduce: 1) Request a password reset link for a valid References: HackerOne Report 342693 HackerOne Report 272379 Password Reset Token Leak Article Password Reset Poisoning Attackers may manipulate the Host header during password reset requests to point the reset link to a malicious site. rockstargames. This can occur when a user clicks on a third-party website link after requesting a password reset. TL;DR Summary Cross-domain Referer leakage Description: Cross-domain Referer leakage When a web browser makes a request for a resource, it typically adds an HTTP header, called the "Referer" header, indicating the URL of the resource from which the request originated. Oct 20, 2024 · Step 3: Capture the Referer header using a tool like Burp Suite to see if the token was indeed leaking. Request password reset to your email address Click on the password reset link Don't change password Click any 3rd party websites (eg: Facebook, twitter) Intercept the request in Burp Suite proxy Check if the referer header is leaking password reset token. Feb 2, 2023 · By manipulating the host header, an attacker can direct the web server to serve a different website or application. The Referer request header contains the address of the previous web page from which a link to the currently requested page was followed Report #226659 - Password Reset link hijacking via Host Header Poisoning @ HackerOne Don't Trust the Host Header for Sending Password Reset Emails | Lightning Security I noticed if I made a request to your website, intercepted the request, and added the header X-Forwarded-Host: evil. To arrive at this baseline rating, Bugcrowd’s security engineers started with generally accepted industry impact and further considered the average acceptance rate, average priority, and commonly requested program-specific exclusions (based on Though I noticed that host header is not validated on multiple domains. Impact: Leads to potential account takeover by leaking reset tokens to attackers. And I'm not sure that you shouldn't keep password reset links and keep new method for password reset such as getting Complete collection of bug bounty reports from Hackerone. Have a suggestion to improve the VRT? Join the conversation on GitHub. Jul 13, 2024 · 4/64. This can be used to perform various types of attacks, such as phishing, cross-site scripting (XSS), or even redirecting a user to a malicious website with password reset poisoning. It is worth to mention that the attack must be highly personalised and requires prior knowledge of user email address that is registered on our platform. com by using cache poisoning with the X-Forwarded-Port or X-Forwarded-Host headers to redirect users to an invalid port. Now through the burpsuite If we try to change the host, 403 will appear {F1145857} So we will Password Reset Token Leak Via Referrer The HTTP referer is an optional HTTP header field that identifies the address of the webpage which is linked to the resource being requested. This is where the Host Header comes in. May 30, 2021 · Exploiting Password Reset Feature can be quite interesting as there are many Common ways of exploiting it. Cross-domain Referer leakage Description: Cross-domain Referer leakage When a web browser makes a request for a resource, it typically adds an HTTP header, called the "Referer" header, indicating the URL of the resource from which the request originated. **Description:** uses the Host header when sending out password reset links. com is infected with "Web cache poisoning" via HOST header lead to Denial of Services Abuse this bug, Attacker can: Poison your cache with HTTP header Host header with arbitrary PORT which is not opened. Exploitation: To check if a password reset token is leaking in the referer header, request a password reset to your email How to test for vulnerabilities using the HTTP Host header To test whether a website is vulnerable to attack via the HTTP Host header, you will need an intercepting proxy, such as Burp Proxy, and manual testing tools like Burp Repeater and Burp Intruder. Even though tokens were immediately invalidated, we decided to re-engineer the process to eliminate any possibility of token leakage. May 1, 2024 · Password reset token leak via “Host header and URL” on untrusted third party website Hello Readers, My name is Ashish rai , I’am a security researcher and bug hunter I have secured more that The reporter has identified that the web application is leaking password reset token in the HTTP referrer header. S. When the password reset implementation is weak, the strength of the overall authentication process for the application is diminished. This attack may lead to Denial of Services How to reproduce the issue: In the 1st terminal, run command likes this: ---------- $ Top disclosed reports from HackerOne. Concrete5 uses the `Host` header when sending out password reset links. Thank ## Summary I found the problem of cache poisoning in www. Well, after that, I tried going to hackerone. Remember, the more detail you provide, the easier it is for us to verify and then potentially issue a bounty, so be sure to take your time filling out the report! **Name of Vulnerability:*Host header injection/SSRF **Areas affected:** [App/ Website + URL/Location] Password Reset Token Leak Via Referrer The HTTP referer is an optional HTTP header field that identifies the address of the webpage which is linked to the resource being requested. Mitigation Steps: Feb 5, 2025 · [1] Password Reset Link Hijacking via Host Header Poisoning Try this bug where Host-header Injection is there, specially when its out-of-scope to increase the impact. #Password token leak via Host header -------------- ##Vulnerability Description: Token will be leaked by the Server to that third party site and that token can be used by third parties to reset the password and take over the account & directly login in your account ##Steps To Reproduce: 1) Send reset password link to your email address. I noticed if I made a request to your website, intercepted the request, and added the header X-Forwarded-Host: evil. The attacker modifies the host header of the request to reset the target’s password to their Hi Security Team, ******************************************* #Description It has been identified that the application is leaking referrer token to third party sites. Host header poisoning occurs when the Host header is manipulated in a HTTP request to point to a domain an attacker controls. com Try setting these request headers during password reset and check the response. … Security 1 min read Security 1 min read Password Reset Token Leak Via Referrer The HTTP referer is an optional HTTP header field that identifies the address of the webpage which is linked to the resource being requested. When the security challenge is completed, the authentication request is replayed to log in. com in the request. Impact: Potential account takeover via Cross-Site Request Forgery (CSRF) attacks. Password Reset Link Leaked In Refer Header In Request To Third Party Sites. This discovery paves the way to using the X-Forwarded-Host header to check for unexpected behaviours. #Hello team ##I hope it will be a happy year for you and for me 😇 ## Summary: I found Host Header injection in oslo. For this example, we'll use evil-user. medium. # Impact It allows the person who has control of particular site to change the user’s password (CSRF attack), because this person knows reset password token of Scenario: An attacker is able to send a password reset request for a user’s account with the Host: header set to their server. One potential solution to this is to avoid any external links on the password reset page. This header specifies which website should process the HTTP request. Vulnerability Description: An attacker can manipulate the Host header as seen by the web application and cause the application to behave in unexpected ways. Contribute to reddelexc/hackerone-reports development by creating an account on GitHub. com:0 appears in the Jun 19, 2025 · The attack process involves intercepting the password reset request and replacing the Host header with an attacker-controlled domain. Contribute to zerosum0xo/reddelexc-hackerone-reports development by creating an account on GitHub. This has now been resolved using CF web cache armor and cache-control headers explicitly set across the app. We thank @bombon for the detailed finding, patience, and co-operation with Jun 17, 2025 · But if the application relies on user-supplied headers (like the Host header) to build this link, it can be manipulated. Use x-forwarded-port to destroy the cache, repeat the request until www. This happened when they shared a cURL command copied from their browser’s console unknowingly including a live session token. playstation. Password reset poisoning is a password reset vulnerability that leverages headers such as the Host header. 2)Now go to email, turn burp suite intercept on and Feb 27, 2025 · By using Token leakage vulnerability , attacker can easily reset accounts password and get access over the accounts. Apr 15, 2025 · Sure enough, the response confirmed that the X-Forwarded-Host header is being reflected in the HTML and is likely being trusted by the application. We'll go through exactly how to identify and exploit a host header injection vulnerability. This allows an attacker to insert a malicious host header, leading to password reset link / token leakage. May 27, 2025 · Report ID: 1262434 Bounty: $500 Final Thoughts This vulnerability is a perfect example of how “non-traditional” vectors like Referer headers can still introduce major risks. Researcher identified a public github repository with no source code but an electron package app in releases, interestingly he went on to downloaded the package and reverse engineer the electron app which lead him to identify the access tokens. 5. For the exploitation part we will also see a demonstration on PortSwigger academy’s lab. It specifies the domain name that the client wants to access. To use HackerOne, enable JavaScript in your browser and refresh this page. If the header is unkeyed but the request line and host header are, an attacker could create a malicious file to be imported and the cached response would distribute this file to anyone who visits the same keyed request for the duration of the cached response. Jan 10, 2024 · I Found a host header injection on a Hackerone target frontegg which lead to open redirect and cache poisoning. Send the POST /forgot-password request to Burp Repeater. Thanks Sarath D. An example of such a request, as provided by the researcher: ``` GET Jul 12, 2020 · The wp-json implementation on some WordPress websites I've tested is vulnerable to Denial-of-service where by an attacker can provide an arbitrary origin header in the request, which is then echoed back in the response via the Access-Control-Allow-Origin header, which is cached and served to other requests. $50,000 Shopify access to source code via leaking GitHub token - Hackerone bug bounty Bug Bounty Reports Explained • 9. By sending this header, an attacker could cause the cache to save a malformed response with status code 400. hackerone. However, this puts the token at risk of leakage through the referer header. - gobeecode/bug-bounty-reports-hackerone Bugcrowd’s VRT is a resource outlining Bugcrowd’s baseline severity rating, including certain edge cases, for vulnerabilities that we see often. In this article, we explore the common vulnerabilities, exploitations and security best practices. acronis. It is considered P4-P5 in Bugcrowd VRT. Ths vu OAuth Missing/Broken State Parameter Sensitive Token in URL Token Leakage via Referer Weak Password Reset Implementation - Token Leakage via Host Header Poisoning V2 - Authentication V3 - Session management V5 - Validation / Sanitization Exposure Sensitive Data Password Reset P5 Token Leakage via Referer Exposure Token Sensitive Data P5 Sensitive Token in URL In the Background Exposure Bug Hunting 18 f Sensitive Data P5 Sensitive Token in URL On Password Reset Exposure Sensitive Data P5 Non-Sensitive Token in URL Exposure Sensitive Data Mixed Content (HTTPS P5 Exposure Sourcing Host header poisoning occurs when the Host header is manipulated in a HTTP request to point to a domain an attacker controls. The researcher identified a @cablej found a vulnerability in our password reset functionality that allowed an attacker using an HTTP request with a modified `Host` header to cause a password reset link to be emailed to the target user that would navigate to the attacker's domain. shopify. 6. Jan 26, 2024 · The password reset feature is often the target of attacks. When attacker can get the password reset token, he will only change the Ngrok domain name to Main Domain to Take over the Account. \n\n## Reproduction\n1. The web server uses the value of this header The token needs to be in the URL, as most email clients do not allow HTML emails to perform POST requests, and asking the user to retype the token is not an acceptable experience. Recently, while searching for One of the most Vulnerabilities i found in Web applications ⚫ Password Reset Token Leak Via Referrer: The HTTP referer is an optional HTTP header field that identifies the address of the webpage A security researcher discovered that sensitive information, like password reset tokens could still be leaked to analytics services like Google Analytics or via the Referer [sic] header. You can see that now May 19, 2025 · In November 2019 a HackerOne security analyst accidentally leaked a valid session cookie while communicating with a researcher. The Referer request-header contains the address of the previous web page from which a link to the currently requested page was followed. Dept Of Defense: Password Reset link hijacking via Host Header Poisoning leads to account takeover 🗓️ 22 Feb 2021 08:13:48 Reported by hemantsolo Type Feb 26, 2021 · This blog is about a vulnerability that, I was able to find in the Hackerone’s private program which allows me to takeover any user’s account. Prior to version 1. Password reset with manipulating email parameter. Because the password reset emails are sent from the Mavenlink email infrastructure, this email, while unexpected by the user, could appear to be Stripo Inc disclosed on HackerOne: Password token leak via Host header #Password token leak via Host header -------------- ##Vulnerability Description: Token will be leaked by the Server to that third party site and that token can be used by third parties to reset the password and take over the account & directly login in your account ##Steps Nov 3, 2018 · Summary: I would like to propose an addition to the VRT for Token Leakage via Host Header Poisoning on Password Reset function. One such problem is open redirection, especially through the Referer header. Check List Host Header Injection Password Reset Function Double Host Header Injection Password Reset Function X-Forwarded-Host Header Injection Password Reset Feb 5, 2025 · [1] Password Reset Link Hijacking via Host Header Poisoning Try this bug where Host-header Injection is there, specially when its out-of-scope to increase the impact. Within few minutes of Top disclosed reports from HackerOne. TL;DR Summary Password Reset Token Leak Via Referrer The HTTP referer is an optional HTTP header field that identifies the address of the webpage which is linked to the resource being requested. This allows the attacker to use the valid token on the real website to reset the victim’s In this report, the researcher demonstrated a method to chain together separate vulnerabilities that, under certain conditions, could cause a user's Facebook Oauth tokens to leak via the Referer header. Sep 24, 2023 · Manipulating the Host Header: In a typical HTTP request, the “Host” header specifies the domain name or IP address of the server the client wants to communicate with. Also test Host header poisoning on verification links (same as reset poisoning below) to leak or complete verification on attacker controlled host. It Oct 11, 2023 · Account Takeover [Via Host Header Injection] Hello hackers, Today, I want to talk about one of my findings in a private VDB program at HackerOne that leads me to take over other user accounts with … Nov 10, 2020 · Victim account receives poisoned link embedded with attacker-controlled domain 4. The HTTP referer header may leak the password reset token if it's included in the URL. And I'm not sure that you shouldn't keep password reset links and keep new method for password reset such as getting Oct 21, 2019 · Most web application vulnerabilities leverage user input in ways that were not initially intended by their developer. In this case it was found that the password reset token is being leaked to third party sites which is a issue knowing the fact that it can allow any malicious users to use the token and reset the passwords of the victim. Jun 11, 2023 · Here ngrok server recieves victim logs with reset password token. OAuth Missing/Broken State Parameter Sensitive Token in URL Token Leakage via Referer Weak Password Reset Implementation - Token Leakage via Host Header Poisoning V2 - Authentication V3 - Session management V5 - Validation / Sanitization Top disclosed reports from HackerOne. com` due to an unkeyed header, `trailer`. Mar 13, 2022 · Token Leakage via Host Header Poisoning Host header is a piece of information in addition to the IP address and port number which can be used to uniquely identify a web domain or application server. Sure enough, the reset token was visible in the Referer header, and anyone monitoring the traffic between the user and the third-party site could capture it. io I tried to use it to show the security effect on users And I found this ## Steps To Reproduce: 1. Techniques such as spoofing, server-side request forgery (SSRF) and browser-powered desync attacks can potentially lead to cache poisoning. Well, first of all, enter your project 2. In certain cases, a user must solve a CAPTCHA challenge after authenticating. au. I have found this vulnerability on several programs and have not foun Jul 29, 2023 · In this video, we will explore Host Header Validation Bypass via Connection State Attacks. Double parameter (aka. Top disclosed reports from HackerOne. Apr 17, 2024 · P2-Token Leakage Via Host Header Poisoning (Weak password Reset Implementation) Vulnerability Category: A3- Sensitive Data Exposure May 24, 2019 2 Password reset token leak via "Host header" on third party website to Shopify - 9 upvotes, $0 An administrator without any permission is able to get order notifications using his APNS Token. When submitting the form, they intercept the resulting HTTP request and modify the Host header so that it points to a domain that they control. Go to the exploit server and make a note of your exploit Real Case Study: This pattern is similar to what was discovered in HackerOne Report #487, one of the earliest cache poisoning bugs found on HackerOne itself, where the X-Forwarded-Host header was In this video we will be learning a vulnerability called Password Reset Token Leakage via referrer Third Party. The Referer request header contains the address of the previous web page from which a link to the currently requested page was followed. Jul 1, 2024 · Introduction In the world of web security, even small problems can lead to big issues. With Burp running, investigate the password reset functionality. com 4) If step 3 doesn’t work out then add a new header X-Forwarded-Host: evil. This is known as Password Reset Poisoning. OAuth Missing/Broken State Parameter Sensitive Token in URL Token Leakage via Referer Weak Password Reset Implementation - Token Leakage via Host Header Poisoning V2 - Authentication V3 - Session management V5 - Validation / Sanitization The researcher @xsam reported leakage of two access tokens, one belonging to Slack and the other belonging to Google API’s. On January 26, @augustozanellato reported that while reviewing a public MacOS app, they found a valid GitHub Access Token belonging to a Shopify employee. Make an invitation by email 3. If the victim clicks on the password reset link, the password reset May 2, 2024 · Password Reset Token Leak Via Referrer The HTTP referer is an optional HTTP header field that identifies the address of the webpage that is linked to the resource being requested. A poisoned web cache can potentially be a devastating means of distributing numerous different attacks, exploiting vulnerabilities such as XSS, JavaScript injection, open redirection, and so on. com it would redirect me to evil. By obtaining a token, malicious user would be able to reset the passwords for a particular user. Lets us look at the few of them: 1. This response header is used by browsers to determine whether the requesting origin is May 12, 2023 · Password Reset Poisoning is one such vulnerability, that leverages commonly unthought of headers, such as the Host header seen in an HTTP request. Hi Team, I have found that if user open the link of reset password and than click on any external links within the reset password page its leak password reset token in referer header. By combining a token leak with a creative iframe trick, saltymermaid demonstrated how an attacker could walk through the locked front door — without a password. ## Steps To Reproduce 1. The HTTP Host header is a mandatory request header as of HTTP/1. Rate Limit Bypass 2FA/MFA/OTP Bypass Email Injections Account Pre‑Hijacking Techniques (before the victim signs up) # Exploitation Request password reset to your email address Click on the password reset link Dont change password Click on about us Intercept the request in burpsuite proxy Check if the referer header is leaking password reset token. The attacker loads the password reset link in a web browser and sets a new password for the victim account-completing the account takeover Hi there, I just found the website: https://themes. \n\n## Impact\nThe victim will receive the malicious link in their email, and, when clicked, will leak the user's password reset link / token to the attacker, leading to full account takeover. To arrive at this baseline rating, Bugcrowd’s security engineers started with generally accepted industry impact and further considered the average acceptance rate, average priority, and commonly requested program-specific exclusions (based on Apr 12, 2018 · 2024-01-10 - FREE - Host header injection to open redirect and cache poisoning on Hackerone target (frontegg) By jeetpal2007 - LIKES: 111 2024-02-03 - FREE - Chaining IDOR and Host Header can takeover 18 Million of users account By nullr3x - LIKES: 460 Password reset token Leakage via referral header - Open the password reset link and click on any external links available in the page. com and I was instantly redirected to evil. Bugcrowd’s VRT is a resource outlining Bugcrowd’s baseline severity rating, including certain edge cases, for vulnerabilities that we see often. Bugcrowd’s Vulnerability Rating Taxonomy Bugcrowd’s Vulnerability Rating Taxonomy is a resource outlining Bugcrowd’s baseline priority rating, including certain edge cases, for common vulnerabilities. When the user receives the password reset email, it arrives from the legitimate email address, however, the host header poisoning causes the password reset link to point at the attackers server. com, where a carefully constructed open redirect led to a juicy access token leak via the Referer header. 46, Kanboard allows password reset emails to be sent with URLs derived from the unvalidated Host header when the application_url configuration is unset (default behavior). Note: Here, the attacker uses the Ngrok server to capture and log the victim’s password reset request URL. This vulnerability found on hackerone Plateform. This bug fetched the researcher a cool $3,000, and it’s a perfect case study on chaining low-severity issues for high impact. Upon validating the report, we immediately revoked the token and performed an audit of access logs to confirm no unauthorized activity had occurred. The commands simulate reset requests with malicious Host headers, monitor callback servers for token leakage, and analyze captured credentials for account takeover opportunities. Password reset token leak via response while requesting a password reset link for the victim user, we can try the below parameter manipulation to get a copy of the reset link of the victim on the attacker email. 5K views • 3 years ago 80+ Web vulnerabilities, categorized into various types:: Validation/Sanitization Vulnerabilities: 1 Blind SQL injection 2 Clickjacking 3 Command Injection 4 Cookie-Based XSS 5 Cross Site Script Mar 26, 2024 · SSRF through Host Header Injection In this blog, we will discuss about host header injection attack and how it is chained to perform SSRF (Server-Side Request Forgery). It can lead to high severity bugs like Account Takeover as well as low hanging fruit like Weak token Implementation. com. The victim receives a genuine password reset email directly from the website. V4 - Access control Weak Password Reset Implementation - Token Leakage via Host Header Poisoning POC 1) Click on reset the password on the application 2) Intercept the HTTP request in Burp Suite 3) Change the Host field to www. An attacker can persistently block access to any/all redirects on www. This allows an attacker to craft a malicious password reset link that leaks the token to an attacker-controlled A bug was identified whereby sensitive, unique tokens were being leaked in a JS file used by the recaptcha implementation. 1. ## Summary: It has been identified that the application is leaking referrer token to third party sites. Very often multiple websites are hosted on the same IP address. Complete collection of bug bounty reports from Hackerone. This token could then be used to reset the password and take over the account! It looks like your JavaScript is disabled. OAuth Missing/Broken State Parameter Sensitive Token in URL Token Leakage via Referer Weak Password Reset Implementation - Token Leakage via Host Header Poisoning V2 - Authentication V3 - Session management V5 - Validation / Sanitization Jun 1, 2021 · Password Token Referral Header Leak Vulnerable applications leak the password reset URL via the referal header. rbmmd phluhjd etqycf ogng hbnmy oqz fxuxl yej edqb yyenzg lqzt mowfbf xmxzk mjsngpfx rbgztsk