{"action":"Upgrade concrete5/concrete5 to 9.5.1 or later.","affected":[{"fixed":"9.5.1","introduced":"0"}],"component":"concrete5/concrete5","cve_ids":["CVE-2026-8139"],"ecosystem":"Packagist","epss":0.0015,"exploited":false,"fixed_versions":["9.5.1"],"ghsa_id":"GHSA-pcrh-gj77-j4mw","id":"tcs_01M5KF69S3ZRFGY5R16NSS111V","modified_at":"2026-09-10T03:51:06.605689505Z","published_at":"2026-05-22T00:31:16Z","references":["https://osv.dev/vulnerability/GHSA-pcrh-gj77-j4mw","https://nvd.nist.gov/vuln/detail/CVE-2026-8139","https://documentation.concretecms.org/9-x/developers/introduction/version-history/951-release-notes","https://github.com/concretecms/concretecms"],"severity":{"label":"low"},"sources":[{"source":"osv","source_id":"GHSA-pcrh-gj77-j4mw","url":"https://osv.dev/vulnerability/GHSA-pcrh-gj77-j4mw"}],"summary":"Concrete CMS is vulnerable to Stored XSS via external-link page cvName"}