PT-2026-29785 · Thorsten · Phpmyfaq

Published 2026-04-02 · Updated 2026-04-02 · CVE-2026-34974

NVD

CVSS v3.1

5.4

Medium

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

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 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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-34974

Affected Products

Phpmyfaq

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-34974 · Security Note
• https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-5crx-pfhq-4hgg · Note
• https://github.com/thorsten/phpMyFAQ/releases/tag/4.1.1 · Note