{"action":"Upgrade concrete5/concrete5 to 9.5.1 or later.","affected":[{"fixed":"9.5.1","introduced":"0"}],"component":"concrete5/concrete5","cve_ids":["CVE-2026-8428"],"ecosystem":"Packagist","epss":0.00187,"exploited":false,"fixed_versions":["9.5.1"],"ghsa_id":"GHSA-prxr-vjgc-2cq9","id":"tcs_01M5KF6P1M1WWTQWXM2FZ2A3KB","modified_at":"2026-09-10T03:50:47.279597171Z","published_at":"2026-05-21T21:30:38Z","references":["https://osv.dev/vulnerability/GHSA-prxr-vjgc-2cq9","https://nvd.nist.gov/vuln/detail/CVE-2026-8428","https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes","https://github.com/concretecms/concretecms"],"severity":{"label":"high"},"sources":[{"source":"osv","source_id":"GHSA-prxr-vjgc-2cq9","url":"https://osv.dev/vulnerability/GHSA-prxr-vjgc-2cq9"}],"summary":"Concrete CMS is Vulnerable to Cross-Site Request Forgery"}