CVE-2026-111903phpMyFAQ 4.2.0-alpha before 4.2.0-beta Stored XSS via SVG DTD Entity Bypass
Updated under an hour ago ()
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It affects thorsten phpMyFAQ. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains a stored cross-site scripting vulnerability in SvgSanitizer that allows users with FAQ_EDIT permission to bypass sanitization using XML DTD custom entities. Attackers can upload an SVG defining an entity that expands to javascript in an anchor href, executing script when viewers click it to hijack admin sessions.
- CVSS
- 5.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- Weakness (CWE)
- CWE-79
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 17, 2026
- First seen by InfoSec Signals
- Oct 17, 2026
Affected products
thorsten phpMyFAQ thorsten:phpmyfaq (from the name) | from 4.2.0-alpha before 4.2.0-beta; 4.2.0-beta not affected | CNA record |
References
- https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-j3v5-p957-w6gqvendor-advisory
- https://www.vulncheck.com/advisories/phpmyfaq-4.2.0-alpha-before-4.2.0-beta-stored-xss-via-svg-dtd-entity-bypassthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.