CVE-2026-63000

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

Published: Sep 23, 2026Updated: Sep 23, 2026 Sources: CVE List NVDCWE-352

6.4MEDIUM

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:HAttack Complexity

High

PR:NPrivileges Required

None

UI:RUser Interaction

Required

Scope

S:UScope

Unchanged

Impact

C:LConfidentiality

Low

I:HIntegrity

High

A:LAvailability

Low

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Weaknesses

CWE-352

Affected Products

redaxo

oss-projectaka redaxo cms, cms

coreOn-prem

Web & CMS Plugins / cms-core

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Initial Access

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References

https://github.com/redaxo/core/commit/a13abbffbad4fdea46a4edc86cdba3335ca9e8f3

github.com

https://github.com/redaxo/core/pull/6579

github.com

https://github.com/redaxo/core/releases/tag/5.21.2

github.com

and 1 more references View all →

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