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TI-2026-45001 Aliases CVE-2026-63000GHSA-m8r3-22v6-g877

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

Priority MEDIUM 62CWE-352Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
Tampering
Confidentiality · integrity · availability
Low · High · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-352.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00149 4th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed core (redaxo): 5.21.2redaxo/source (Packagist): 5.21.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
redaxocorebefore 5.21.25.21.2Patch availableCNA
—redaxo/source (Packagist)before 5.21.25.21.2Patch availableGHSA-m8r3-22v6-g877
  • core Vendorredaxo Affected before 5.21.2 Fixed in 5.21.2 Patch available CNA
  • redaxo/source (Packagist) Vendor— Affected before 5.21.2 Fixed in 5.21.2 Patch available GHSA-m8r3-22v6-g877

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:redaxo:redaxo:*:*:*:*:*:*:*:*before 5.21.2Vulnerableredaxo
  • cpe:2.3:a:redaxo:redaxo:*:*:*:*:*:*:*:* Versions before 5.21.2 Vulnerable ·redaxo

Remediation

  • Fix · CNA core (redaxo) Fixed in 5.21.2
  • Fix · GHSA-m8r3-22v6-g877 redaxo/source (Packagist) Fixed in 5.21.2 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-63000
  2. 2026-10-03 Alias added: GHSA-m8r3-22v6-g877

References

Exploit 1

Patch 2

Other 2

  • TI-2026-17559 Redaxo has Path Traversal in Backup Addon Leading to Arbitrary File Read CVSS 4.0HIGH 8.3
  • TI-2025-39517 A Remote Code Execution (RCE) vulnerability in the template management component in… CVSS 3.1HIGH 7.2
  • TI-2024-30898 REDAXO CMS v2.11.0 was discovered to contain a remote code execution (RCE) vulnerability. CVSS 3.1HIGH 7.2
  • TI-2024-30896 An arbitrary file upload vulnerability in the MediaPool module of Redaxo CMS v5.17.1… CVSS 3.1HIGH 7.2
  • TI-2024-16680 Redaxo v5.15.1 was discovered to contain a remote code execution (RCE) vulnerability via… CVSS 3.1HIGH 7.2
  • TI-2024-16678 An issue was discovered in REDAXO version 5.15.1, allows attackers to execute arbitrary… CVSS 3.1HIGH 7.2
See all 30 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences