{"id":"CVE-2026-117536","aliases":[],"title":"REDAXO before 5.21.3 CSRF Token Bypass via users/users Privilege Escalation","titleSource":"VulnCheck","descriptionSource":"VulnCheck","products":[{"vendor":"redaxo","name":"core","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"5.21.3","versionType":"semver"},{"version":"5.21.3","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-117536"}],"remediation":[],"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.","severity":"high","score":8.6,"published":"2026-10-27T10:59:31.445Z","modified":"2026-10-27T10:59:31.445Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://github.com/redaxo/core/security/advisories/GHSA-mrrj-4f5x-j958","https://www.vulncheck.com/advisories/redaxo-before-5.21.3-csrf-token-bypass-via-users-users-privilege-escalation"],"sources":[{"name":"CVE","id":"CVE-2026-117536","modified":"2026-10-27T10:59:31.445Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-117536"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.6},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8}],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T20:55:31.375Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}