{"id":"CVE-2026-117536","title":"REDAXO before 5.21.3 CSRF Token Bypass via users/users Privilege Escalation","summary":"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…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-352"],"vendor":"redaxo","product":"core","affected":["core < 5.21.3"],"published":"2026-10-27","updated":"2026-10-27","sourceUpdated":"2026-10-27T10:59:31.445Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-117536","references":[{"url":"https://github.com/redaxo/core/security/advisories/GHSA-mrrj-4f5x-j958","label":"GitHub Security Advisory (GHSA-mrrj-4f5x-j958)"},{"url":"https://www.vulncheck.com/advisories/redaxo-before-5.21.3-csrf-token-bypass-via-users-users-privilege-escalation","label":"VulnCheck Advisory: REDAXO before 5.21.3 CSRF Token Bypass via users/users Privilege Escalation"}],"tags":["cve.org"],"ingestedAt":"2026-10-27T16:11:59.297Z","slug":"CVE-2026-117536","body":"## Overview\n\nREDAXO 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.\n\n## Affected\n\n- `core < 5.21.3`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}