CVE-2026-34974
Last modified
CVE-2026-34974 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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. EPSS estimates a 0.18% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Phpmyfaq | Phpmyfaq | < 4.1.1 |
References
- https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-5crx-pfhq-4hggExploit, Vendor Advisory
- https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-5crx-pfhq-4hggExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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