{"id":"CVE-2021-41749","aliases":["GHSA-g7xr-v82w-qggq"],"url":"https://o3.security/vulnerability/CVE-2021-41749","summary":"Code Injection in SEOmatic","details":"In the SEOmatic plugin up to 3.4.11 for Craft CMS 3, it is possible for unauthenticated attackers to perform a Server-Side Template Injection, allowing for remote code execution.","published":"2022-06-12T11:15:07.663Z","modified":"2026-07-09T01:07:35.370903Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"nystudio107/craft-seomatic","fixedVersion":"3.4.11"}],"fix":{"url":"https://github.com/nystudio107/craft-seomatic/commit/3fee7d50147cdf3f999cfc1e04cbc3fb3d9f2f7d","label":"nystudio107/craft-seomatic@3fee7d5"},"references":[{"type":"ADVISORY","url":"https://github.com/nystudio107/craft-seomatic/blob/develop/CHANGELOG.md"},{"type":"FIX","url":"https://github.com/nystudio107/craft-seomatic/commit/3fee7d50147cdf3f999cfc1e04cbc3fb3d9f2f7d"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T01:07:35.370903Z"}}