{"id":"CVE-2024-8661","aliases":["GHSA-xmxj-v2q8-8qx6"],"url":"https://o3.security/vulnerability/CVE-2024-8661","summary":"Concrete CMS version 9.0.0 to 9.3.3 and below 8.5.19 are vulnerable to Stored XSS in the \"Next&Previous Nav\" block","details":"Concrete CMS versions 9.0.0 to 9.3.3 and below 8.5.19 are vulnerable to Stored XSS in the \"Next&Previous Nav\" block. A rogue administrator could add a malicious payload  by executing it in the browsers of targeted users. The Concrete CMS Security Team gave this vulnerability a CVSS v4 score of 4.6 with vector  CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N  Since the \"Next&Previous Nav\" block output was not sufficiently sanitized, the malicious payload could be executed in the browsers of targeted users. Thanks, Chu Quoc Khanh for reporting.","published":"2024-09-16T17:37:29.363Z","modified":"2026-07-15T01:49:08.101548508Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"concrete5/concrete5","fixedVersion":"8.5.19"},{"ecosystem":"Packagist","name":"concrete5/concrete5","fixedVersion":"9.3.4"}],"fix":{"url":"https://github.com/concretecms/concretecms/commit/ce5ee2ab83fe8de6fa012dd51c5a1dde05cb0dc4","label":"concretecms/concretecms@ce5ee2a"},"references":[{"type":"WEB","url":"https://documentation.concretecms.org/9-x/developers/introduction/version-history/934-release-notes"},{"type":"WEB","url":"https://documentation.concretecms.org/developers/introduction/version-history/8519-release-notes"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/8xxx/CVE-2024-8661.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-8661"},{"type":"FIX","url":"https://github.com/concretecms/concretecms/commit/ce5ee2ab83fe8de6fa012dd51c5a1dde05cb0dc4"},{"type":"FIX","url":"https://github.com/concretecms/concretecms/pull/12204"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:08.101548508Z"}}