CVE-2026-63000

Severity CVSS v4.0:

Pending analysis

Type:

CWE-352 Cross-Site Request Forgery (CSRF)

Publication date:

23/09/2026

Last modified:

29/09/2026

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&#39;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&#39;s intent. This issue is fixed in version 5.21.2.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L CVSS v3.1 Severity and Metrics:

Base Score: 6.40 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): High
Availability (A): Low

Base Score 3.x

6.40

Severity 3.x

MEDIUM

CVE-2026-63000

Description

Impact

References to Advisories, Solutions, and Tools