CVE-2024-27300: phpmyfaq/phpmyfaq - Stored Cross-site Scripting at user email
Summary
CVE-2024-27300: phpMyFAQ stored Cross-site Scripting at user email. Affects phpmyfaq/phpmyfaq versions >= 3.2.5, < 3.2.6. Fixed in 3.2.6. How to fix ↓
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Background
phpmyfaq/phpmyfaq is an open-source FAQ management system written in PHP. It provides a user-friendly interface for creating and managing frequently asked questions. The system allows users to register accounts and update their personal information, including their email address. However, a vulnerability in the email field validation process allows for the storage of malicious JavaScript code, leading to a stored cross-site scripting (XSS) attack.
Vulnerability Detail
The vulnerability arises from the inadequate validation of the email field in phpMyFAQ's user control panel page. While PHP's FILTER_VALIDATE_EMAIL function is used to validate the email format, it fails to validate the content of the email address. This allows an attacker to input and store JavaScript code in the database without detection. When the stored data is later retrieved and displayed on web pages, the lack of proper sanitization exposes users to potential XSS attacks. An attacker can execute arbitrary client-side JavaScript within the context of another user's phpMyFAQ session, potentially leading to unauthorized actions or data theft.
How To Fix
Minimum fixed version
3.2.6
This is the first release that contains the fix.
composer require phpmyfaq/phpmyfaq:3.2.6Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, administrators can manually inspect and sanitize the email field entries in the database to remove any potentially malicious content. Regularly monitoring and reviewing user accounts for suspicious activity can also help mitigate the risk of exploitation.
Conclusion
The stored cross-site scripting vulnerability in phpmyfaq/phpmyfaq's user email field poses a moderate risk to the security and integrity of the application. It allows an attacker to execute arbitrary client-side JavaScript within the context of another user's session, potentially leading to unauthorized actions or data theft. It is crucial to promptly update to version 3.2.6 or later to mitigate this vulnerability. Regular monitoring of user accounts and implementing proper input validation and sanitization practices can further enhance the security of the application.
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FAQ
This vulnerability allows an attacker to execute arbitrary client-side JavaScript within the context of another user's phpMyFAQ session. This can lead to unauthorized actions, data theft, or the manipulation of user interactions within the application.
You can use the Vulert Playground at Vulert Scanner to check if your application is affected by this vulnerability. Simply provide your composer.lock file, and Vulert will analyze it for any open-source vulnerabilities, including this one.
Yes, a fix has been released in version 3.2.6 of phpmyfaq/phpmyfaq. It is recommended to update to this version or later to mitigate the vulnerability.
As mentioned earlier, a temporary workaround involves manually inspecting and sanitizing the email field entries in the database. Additionally, regularly monitoring user accounts for suspicious activity can help detect and mitigate potential exploitation.
No, this vulnerability requires an authenticated user to exploit it. However, if an attacker gains access to a valid user account, they can execute the XSS attack within the context of that user's session.
References
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