CVE-2026-63000
REDAXO: Missing CSRF Protection on Package Update Action Allows Forced Addon Updates
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
REDAXO is a PHP-based content management system. Prior to 5.21.2, rex_api_install_package_update in redaxo/src/addons/install/lib/api/api_package_update.php inherits the false default from rex_api_function::requiresCsrfProtection() instead of requiring a CSRF token. An unauthenticated attacker can cause a logged-in administrator's browser to request a selected package update from the configured REDAXO package server, changing installed addon code or disrupting the site without the administrator's intent. This issue is fixed in version 5.21.2.
| CWE | CWE-352 |
| Vendor | redaxo |
| Product | core |
| Published | Sep 23, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
Low
Affected Versions
redaxo / core
< 5.21.2