{"id":"CVE-2020-4040","aliases":["GHSA-2q66-6cc3-6xm8"],"url":"https://o3.security/vulnerability/CVE-2020-4040","summary":"CSRF issue on preview pages in Bolt CMS","details":"Bolt CMS before version 3.7.1 lacked CSRF protection in the preview generating endpoint. Previews are intended to be generated by the admins, developers, chief-editors, and editors, who are authorized to create content in the application. But due to lack of proper CSRF protection, unauthorized users could generate a preview. This has been fixed in Bolt 3.7.1","published":"2020-06-08T22:15:10.603Z","modified":"2026-08-07T15:13:44.445350Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Packagist","name":"bolt/bolt","fixedVersion":"3.7.1"}],"fix":{"url":"https://github.com/bolt/bolt/commit/b42cbfcf3e3108c46a80581216ba03ef449e419f","label":"bolt/bolt@b42cbfc"},"references":[{"type":"FIX","url":"https://github.com/bolt/bolt/commit/b42cbfcf3e3108c46a80581216ba03ef449e419f"},{"type":"FIX","url":"https://github.com/bolt/bolt/pull/7853"},{"type":"FIX","url":"https://github.com/bolt/bolt/security/advisories/GHSA-2q66-6cc3-6xm8"},{"type":"EVIDENCE","url":"http://packetstormsecurity.com/files/158299/Bolt-CMS-3.7.0-XSS-CSRF-Shell-Upload.html"},{"type":"EVIDENCE","url":"http://seclists.org/fulldisclosure/2020/Jul/4"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T15:13:44.445350Z"}}