CVE-2026-34974

low-risk
Published 2026-04-02

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.

Do I need to act?

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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.4/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Phpmyfaq

References (3)

Product https://github.com/thorsten/phpMyFAQ/releases/tag/4.1.1
Exploit https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-5crx-pfhq-4hgg
Exploit https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-5crx-pfhq-4hgg
26
/ 100
low-risk
Severity 21/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal