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.

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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
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 23 Sep 2026 14:30:00 +0000

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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-09-23T14:08:42.402Z

Reserved: 2026-07-14T23:10:57.032Z

Link: CVE-2026-63000

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-23T15:17:15.453

Modified: 2026-09-23T15:17:15.453

Link: CVE-2026-63000

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses