CVE-2026-34974

Published: Apr 2, 2026Modified: Jul 24, 2026

5.4

Vector

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

Exploitability: 2.3 / Impact: 2.7

Source: security-advisories@github.com (Secondary)

Description

phpMyFAQ is an open source FAQ web application. Prior to version 4.1.1, the regex-based SVG sanitizer in phpMyFAQ (SvgSanitizer.php) can be bypassed using HTML entity encoding in javascript: URLs within SVG <a href> attributes. Any user with edit_faq permission can upload a malicious SVG that executes arbitrary JavaScript when viewed, enabling privilege escalation from editor to full admin takeover. This issue has been patched in version 4.1.1.

Affected (1)

Products: Phpmyfaq: Phpmyfaq

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Phpmyfaq Phpmyfaq	Before 4.1.1

Related CWEs

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (3)

https://github.com/thorsten/phpMyFAQ/releases/tag/4.1.1

Source: security-advisories@github.com

Product

https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-5crx-pfhq-4hgg

Source: security-advisories@github.com

ExploitVendor Advisory

https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-5crx-pfhq-4hgg

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

ExploitVendor Advisory

Timeline

No history available yet.