p PatchFirst

CVE-2026-63002

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

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 4.8 · Medium · EPSS 0.2% · Public exploit · Fix available

Published
Updated

Stack: php

Affected products and versions

  • core

    Versions
    • < 5.21.2: Affected

    No fix published

  • redaxo/source Packagist

    Versions
    • 5.10.0
    • 5.10.0-beta1
    • 5.10.0-beta2
    • 5.10.1
    • 5.11.0
    • 5.11.0-beta1
    • 5.11.1
    • 5.11.2
    • 5.12.0
    • 5.12.0-beta1
    • 5.12.0-beta2
    • 5.12.0-beta3
    • 5.12.1
    • 5.13.0
    • 5.13.0-beta1
    • 5.13.0-beta2
    • 5.13.1
    • 5.13.2
    • 5.13.3
    • 5.14.0
    • 5.14.0-beta1
    • 5.14.0-beta2
    • 5.14.1
    • 5.14.2
    • 5.14.3
    • 5.15.0
    • 5.15.0-beta1
    • 5.15.1
    • 5.16.0
    • 5.16.0-beta1
    • 5.16.1
    • 5.17.0
    • 5.17.1
    • 5.18.0
    • 5.18.1
    • 5.18.2
    • 5.18.3
    • 5.19.0
    • 5.20.0
    • 5.20.1
    • 5.20.2
    • 5.21.0
    • 5.21.0-beta1
    • 5.21.1
    Affected ranges
    • ECOSYSTEM: < 5.21.2

    Update to 5.21.2

Original sources

Check your server →