CVEvulnerability
CVE-2026-34974
5.4 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-04-02
- Last modified
- 2026-07-24
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79
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 configurations
• phpmyfaq phpmyfaq (< 4.1.1)
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://github.com/thorsten/phpMyFAQ/releases/tag/4.1.1 Product
- https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-5crx-pfhq-4hgg Exploit, Vendor Advisory
- https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-5crx-pfhq-4hgg Exploit, Vendor Advisory