{"id":"GHSA-6fxm-r8p3-mx5c","aliases":["CVE-2026-8433"],"title":"Concrete CMS is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file rescan()","description":"Concrete CMS 9 before 9.5.0 is vulnerable to Cross Site Request Forgery (CSRF) at concrete/controllers/backend/file rescan().","severity":"low","score":2.3,"published":"2026-05-22T00:31:17.000Z","modified":"2026-09-10T03:50:45.821Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"concrete5/concrete5","ranges":[{"events":[{"introduced":"9.0.0RC1"},{"fixed":"9.5.1"}],"type":"ECOSYSTEM"}],"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"],"fixed":["9.5.1"]}],"references":["https://nvd.nist.gov/vuln/detail/CVE-2026-8433","https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes","https://github.com/concretecms/concretecms"],"sources":[{"name":"OSV","id":"GHSA-6fxm-r8p3-mx5c","modified":"2026-09-10T03:50:45.821140720Z","url":"https://osv.dev/vulnerability/GHSA-6fxm-r8p3-mx5c"}],"assessments":[{"source":"OSV","vector":"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","score":2.3}]}