Medium 6.4Published Sep 23, 2026

CVE-2026-63000REDAXO: Missing CSRF Protection on Package Update Action Allows Forced Addon Updates

Updated under an hour ago (Oct 27, 2026, 11:30 AM ET)

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It affects redaxo core and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for redaxo core

Exploited in the last 30 days

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.

CVSS: 6.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L
Weakness (CWE): CWE-352
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Sep 28, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

redaxo core redaxo:core (from the name)	before 5.21.2	CNA record
redaxo redaxo redaxo:redaxo	before 5.21.2	NVD

References

References

https://github.com/redaxo/core/security/advisories/GHSA-m8r3-22v6-g877	x-refsource-confirm, exploit, vendor-advisory
https://github.com/redaxo/core/pull/6579	x-refsource-misc, issue-tracking, patch
https://github.com/redaxo/core/commit/a13abbffbad4fdea46a4edc86cdba3335ca9e8f3	x-refsource-misc, patch
https://github.com/redaxo/core/releases/tag/5.21.2	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.