CVE-2026-46360 phpMyFAQ - Stored XSS via Entity Decoding Depth Limit Bypass in SVG Sanitizer

phpMyFAQ before 4.1.2 contains a stored cross-site scripting vulnerability in SvgSanitizer::decodeAllEntities that limits recursive entity decoding to 5 iterations, allowing attackers to bypass sanitization. Authenticated users with FAQEDIT permission can upload malicious SVG files with deeply...

phpMyFAQ has a SVG Sanitizer Entity Decoding Depth Limit Bypass Leading to Stored XSS

Summary The SvgSanitizer::decodeAllEntities method limits recursive entity decoding to 5 iterations. By wrapping each character of javascript in an href attribute value with 5 levels of & encoding around numeric HTML entities e.g., amp;amp;amp;106; for j, an attacker can bypass both isSafe...