CVE-2026-63000
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.
Published:Sep 23, 2026
Last Modified:Oct 19, 2026
EPS:Sep 23, 2026
EPSS Score:0.00131
CVSS Score:6.4
Affected Products
Vendor
Product
Action
Vendor
Redaxo
Product
Core
Redaxo
Core
Vendor
Redaxo
Product
Redaxo
Redaxo
Redaxo
Exploits
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
Related CVEs
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
