CVE-2026-63000

REDAXO: Missing CSRF Protection on Package Update Action Allows Forced Addon Updates

Published Sep 23, 2026 CVSS 3.1 · 6.4 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-m8r3-22v6-g877 REDAXO: Missing CSRF Protection on Package Update Action Allows Forced Addon Updates
History
Type Values Removed Values Added
First Time appeared Redaxo redaxo
CPEs cpe:2.3:a:redaxo:redaxo:*:*:*:*:*:*:*:*
Vendors & Products Redaxo redaxo
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Redaxo
Redaxo core
Vendors & Products Redaxo
Redaxo core
Type Values Removed Values Added
Description 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.
Title REDAXO: Missing CSRF Protection on Package Update Action Allows Forced Addon Updates
Weaknesses CWE-352
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Sep 29, 2026, 1:56 AM
Reserved
Jul 14, 2026, 11:10 PM
Status
Analyzed
Published
Sep 23, 2026, 3:17 PM
Modified
Oct 19, 2026, 8:35 PM