{"id":"GHSA-44q4-354f-c826","summary":"Concrete CMS is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file approveVersion()","details":"Concrete CMS 9 through 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file approveVersion().","aliases":["CVE-2026-8435"],"modified":"2026-09-10T03:51:04.483910584Z","published":"2026-05-22T00:31:17Z","database_specific":{"cwe_ids":["CWE-352"],"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2026-06-24T21:37:55Z","nvd_published_at":"2026-05-21T22:16:52Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8435"},{"type":"WEB","url":"https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes"},{"type":"PACKAGE","url":"https://github.com/concretecms/concretecms"}],"affected":[{"package":{"name":"concrete5/concrete5","ecosystem":"Packagist","purl":"pkg:composer/concrete5/concrete5"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0RC1"},{"fixed":"9.5.1"}]}],"versions":["9.0.0","9.0.0RC1","9.0.0RC3","9.0.0RC4","9.0.1","9.0.2","9.1.0","9.1.1","9.1.2","9.1.3","9.2.0","9.2.0RC2","9.2.1","9.2.2","9.2.3","9.2.4","9.2.5","9.2.6","9.2.7","9.2.8","9.2.9","9.3.0","9.3.1","9.3.2","9.3.3","9.3.4","9.3.5","9.3.6","9.3.7","9.3.8","9.3.9","9.4.0","9.4.0RC1","9.4.0RC2","9.4.1","9.4.2","9.4.3","9.4.4","9.4.5","9.4.6","9.4.7","9.4.8","9.5.0","9.5.0RC1","9.5.0RC2"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-44q4-354f-c826/GHSA-44q4-354f-c826.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/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"}]}