Vulnerability Description
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 rex_escape(). An attacker who can place an unregistered file with HTML metacharacters in the media directory can execute script in the browser of a backend user with media[sync] permission when that user opens the Sync page, enabling session theft or unauthorized backend actions. This issue is fixed in version 5.21.2.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/redaxo/core/commit/2daaa3a30570bc76a82f63fd21fb8c9c2cd5dc7c
- https://github.com/redaxo/core/pull/6581
- https://github.com/redaxo/core/releases/tag/5.21.2
- https://github.com/redaxo/core/security/advisories/GHSA-w998-qmw9-mf4m
- https://github.com/redaxo/core/security/advisories/GHSA-w998-qmw9-mf4m
FAQ
What is CVE-2026-63002?
CVE-2026-63002 is a vulnerability with a CVSS score of 4.8 (MEDIUM). 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...
How severe is CVE-2026-63002?
CVE-2026-63002 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-63002?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.