Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS via the rendering of unescaped filenames from the filesystem in the backend sync page. An attacker can execute arbitrary JavaScript in the browser of backend users by placing specially crafted files with malicio...

REDAXO: Stored XSS in Mediapool Sync Page via Unescaped Filesystem Filenames

Summary The mediapool sync page sync.php renders filenames from the /media filesystem directory directly into HTML without applying rexescape i.e., htmlspecialchars. Any file placed in the media directory whose filename contains HTML metacharacters will execute JavaScript in the browser of any...

CVE-2026-63002 REDAXO: Stored XSS in Mediapool Sync Page via Unescaped Filesystem Filenames

REDAXO is a PHP-based content management system. Prior to 5.21.2, redaxo/src/addons/mediapool/pages/sync.php inserts filenames held in $diffFiles from the media filesystem into the Mediapool Sync page without rexescape. An attacker who can place an unregistered file with HTML metacharacters in th...

EUVD-2026-85331

REDAXO is a PHP-based content management system. Prior to 5.21.2, redaxo/src/addons/mediapool/pages/sync.php inserts filenames held in $diffFiles from the media filesystem into the Mediapool Sync page without rexescape. An attacker who can place an unregistered file with HTML metacharacters in th...