{"id":"CVE-2026-111903","title":"phpMyFAQ 4.2.0-alpha before 4.2.0-beta Stored XSS via SVG DTD Entity Bypass","summary":"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 defi…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-79"],"vendor":"thorsten","product":"phpMyFAQ","affected":["phpMyFAQ >= 4.2.0-alpha < 4.2.0-beta"],"published":"2026-10-17","updated":"2026-10-17","sourceUpdated":"2026-10-17T18:46:23.442Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111903","references":[{"url":"https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-j3v5-p957-w6gq","label":"GitHub Security Advisory (GHSA-j3v5-p957-w6gq)"},{"url":"https://www.vulncheck.com/advisories/phpmyfaq-4.2.0-alpha-before-4.2.0-beta-stored-xss-via-svg-dtd-entity-bypass","label":"VulnCheck Advisory: phpMyFAQ 4.2.0-alpha before 4.2.0-beta Stored XSS via SVG DTD Entity Bypass"}],"tags":["cve.org"],"ingestedAt":"2026-10-17T19:08:56.877Z","slug":"CVE-2026-111903","body":"## Overview\n\nphpMyFAQ 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.\n\n## Affected\n\n- `phpMyFAQ >= 4.2.0-alpha < 4.2.0-beta`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}