{"id":"CVE-2026-117536","aliases":["EUVD-2026-110801","GHSA-4rqm-5495-h9jx","GHSA-mrrj-4f5x-j958"],"status":"published","title":"REDAXO before 5.21.3 CSRF Token Bypass via users/users Privilege Escalation","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":{"version":"4.0","score":8.6,"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00135,"percentile":0.0303,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-352"],"published":"2026-10-27T10:59:31Z","modified":"2026-11-04T02:31:00Z","products":[{"vendor":"opnsense","product":"core"},{"vendor":"redaxo","product":"core"}],"references":[{"url":"https://github.com/redaxo/core/security/advisories/GHSA-mrrj-4f5x-j958","tags":["vendor-advisory","advisory"]},{"url":"https://www.vulncheck.com/advisories/redaxo-before-5.21.3-csrf-token-bypass-via-users-users-privilege-escalation","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-117536","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-4rqm-5495-h9jx"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/117xxx/CVE-2026-117536.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-117536","title":"REDAXO before 5.21.3 CSRF Token Bypass via users/users Privilege Escalation","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.","status":"published","published":"2026-10-27T10:59:31.445Z","modified":"2026-11-02T19:12:24.22Z","cvss":[{"version":"4.0","score":8.6,"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","level":"high","assessor":"cna"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T20:51:24.336573Z"}],"euvd":[{"id":"EUVD-2026-110801","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.","status":"published","published":"2026-10-27T10:59:31Z","modified":"2026-11-02T19:12:24Z","cvss":[{"version":"4.0","score":8.6,"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","level":"high"}],"updated_at":"2026-11-03T05:08:38.228652Z"}],"ghsa":[{"id":"GHSA-4rqm-5495-h9jx","title":"REDAXO before 5.21.3 contains a cross-site request forgery vulnerability in the backend user...","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.","status":"published","published":"2026-10-27T12:30:52Z","modified":"2026-10-27T12:30:52Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"},{"version":"4.0","score":8.6,"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:14:28.758422Z"}],"nvd":[{"id":"CVE-2026-117536","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.","status":"published","published":"2026-10-27T11:17:34.2Z","modified":"2026-11-02T20:17:35.27Z","cvss":[{"version":"4.0","score":8.6,"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-352"],"updated_at":"2026-11-03T00:02:37.317866Z"}],"osv":[{"id":"CVE-2026-117536","title":"REDAXO before 5.21.3 CSRF Token Bypass via users/users Privilege Escalation","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.","status":"published","published":"2026-10-27T10:59:31.445Z","modified":"2026-11-04T02:31:00.920456843Z","cvss":[{"version":"4.0","score":8.6,"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","level":"high"}],"cwes":["CWE-352"],"updated_at":"2026-11-04T02:54:44.889498Z"}]}}