CVE-2026-21857

REDAXO is a PHP-based content management system. Prior to version 5.20.2, authenticated users with backup permissions can read arbitrary files within the webroot via path traversal in the Backup addon's file export functionality. The Backup addon does not validate the EXPDIR POST parameter agains...

CVE-2026-21857

REDAXO is a PHP-based content management system. Prior to version 5.20.2, authenticated users with backup permissions can read arbitrary files within the webroot via path traversal in the Backup addon's file export functionality. The Backup addon does not validate the EXPDIR POST parameter agains...

GHSA-824X-88XG-CWRV Redaxo has Path Traversal in Backup Addon Leading to Arbitrary File Read

Summary Authenticated users with backup permissions can read arbitrary files within the webroot via path traversal in the Backup addon's file export functionality. Details The Backup addon does not validate the EXPDIR POST parameter against the UI-generated allowlist of permitted directories. An...