CVE-2026-41661

Admidio is an open-source user management solution. Prior to version 5.0.9, an unauthenticated attacker can execute arbitrary JavaScript in any Admidio user's browser through a reflected XSS in system/msgwindow.php. The endpoint passes user input through htmlspecialchars, which does not encode...

CVE-2026-41661: Improper Neutralization of Input During Web Page Generation

Admidio is an open-source user management solution. Prior to version 5.0.9, an unauthenticated attacker can execute arbitrary JavaScript in any Admidio user's browser through a reflected XSS in system/msgwindow.php. The endpoint passes user input through htmlspecialchars, which does not encode...