2026-04-02 14:43:14
GitHub_M
PUBLISHED
phpMyFAQ is an open source FAQ web application. Prior to version 4.1.1, an unauthenticated attacker can submit a guest FAQ with an email address that is syntactically valid per RFC 5321 (quoted local part) yet contains raw HTML — for example ""@evil.com. PHPs FILTER_VALIDATE_EMAIL accepts this email as valid. The email is stored in the database without HTML sanitization and later rendered in the admin FAQ editor template using Twigs |raw filter, which bypasses auto-escaping entirely. This issue has been patched in version 4.1.1.