CVE-2026-111903
phpMyFAQ 4.2.0-alpha before 4.2.0-beta Stored XSS via SVG DTD Entity Bypass
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | thorsten |
| Product | phpmyfaq |
| Published | Oct 17, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
thorsten / phpMyFAQ
4.2.0-alpha < 4.2.0-beta
References
Credits
🔍 JulienPerrinGithub