{"id":"CVE-2026-33159","aliases":["GHSA-6mrr-q3pj-h53w"],"url":"https://o3.security/vulnerability/CVE-2026-33159","summary":"Craft CMS: Unauthenticated users could execute project configuration sync operations that should be restricted trusted users","details":"Craft CMS is a content management system (CMS). From version 4.0.0-RC1 to before version 4.17.8 and from version 5.0.0-RC1 to before version 5.9.14, guest users can access Config Sync updater index, obtain signed data, and execute state-changing Config Sync actions (regenerate-yaml, apply-yaml-changes) without authentication. This issue has been patched in versions 4.17.8 and 5.9.14.","published":"2026-03-24T17:28:37.422Z","modified":"2026-08-12T03:51:21.709339863Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"craftcms/cms","fixedVersion":"5.9.14"},{"ecosystem":"Packagist","name":"craftcms/cms","fixedVersion":"4.17.8"}],"fix":{"url":"https://github.com/craftcms/cms/commit/7f0ead833f7c2b91ae12003caad833479dd08592","label":"craftcms/cms@7f0ead8"},"references":[{"type":"WEB","url":"https://github.com/craftcms/cms/releases/tag/4.17.8"},{"type":"WEB","url":"https://github.com/craftcms/cms/releases/tag/5.9.14"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33159.json"},{"type":"ADVISORY","url":"https://github.com/craftcms/cms/security/advisories/GHSA-6mrr-q3pj-h53w"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33159"},{"type":"FIX","url":"https://github.com/craftcms/cms/commit/7f0ead833f7c2b91ae12003caad833479dd08592"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:21.709339863Z"}}