CVE-2024-27300: phpmyfaq XSS — Exploit & Fix

Description

phpMyFAQ is an open source FAQ web application for PHP 8.1+ and MySQL, PostgreSQL and other databases. The `email` field in phpMyFAQ's user control panel page is vulnerable to stored XSS attacks due to the inadequacy of PHP's `FILTER_VALIDATE_EMAIL` function, which only validates the email format, not its content. This vulnerability enables an attacker to execute arbitrary client-side JavaScript within the context of another user's phpMyFAQ session. This vulnerability is fixed in 3.2.6.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
phpmyfaq	phpmyfaq	All

References

Advisories & Patches

https://github.com/thorsten/phpMyFAQ/commit/09336b0ff0e0a04aa0c97c5975651af4769d2459 https://github.com/thorsten/phpMyFAQ/commit/de90315c9bd4ead5fe6ba5586f6b016843aa8209 https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-q7g6-xfh2-vhpx https://github.com/thorsten/phpMyFAQ/commit/09336b0ff0e0a04aa0c97c5975651af4769d2459 https://github.com/thorsten/phpMyFAQ/commit/de90315c9bd4ead5fe6ba5586f6b016843aa8209 https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-q7g6-xfh2-vhpx

Exploits

https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-q7g6-xfh2-vhpx https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-q7g6-xfh2-vhpx

Frequently Asked Questions

What is CVE-2024-27300? +

phpMyFAQ is an open source FAQ web application for PHP 8.1+ and MySQL, PostgreSQL and other databases. The `email` field in phpMyFAQ's user control panel page is vulnerable to stored XSS attacks due to the inadequacy of PHP's `FILTER_VALIDATE_EMAIL` function, which only validates the email format, not its content. This vulnerability enables an attacker to execute arbitrary client-side JavaScript within the context of another user's phpMyFAQ session. This vulnerability is fixed in 3.2.6. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-27300? +

CVE-2024-27300 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-27300? +

CVE-2024-27300 affects products from phpmyfaq, specifically: phpmyfaq. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-27300? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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