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CVE-2026-117536EUVD-2026-110801GHSA-4RQM-5495-H9JX

REDAXO before 5.21.3 CSRF Token Bypass via users/users Privilege Escalation

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.21.3
None on Exploit-DB, Metasploit or GitHub

Summary

REDAXO, a PHP content management system, is affected in versions before 5.21.3 through a flaw in its backend user administration page that bypasses CSRF protection. An attacker can trick a logged-in backend user with user-management permissions into clicking a crafted link, allowing them to escalate privileges, deactivate accounts, or lock out the only administrator.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

REDAXO before 5.21.3 contains a cross-site request forgery vulnerability in the backend user administration page (users/users) because the CSRF token check only runs when the save parameter is set, while the update path triggered by FUNC_UPDATE does not require it. Attackers can lure a logged-in backend user with the users[] permission to a crafted GET link to grant administrator rights, deactivate accounts, or lock out the sole administrator.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • redaxo core

    fixed in 5.21.3

References 2

GitHub · redaxo/core

vulncheck.com