{"id":"CVE-2020-12790","aliases":["GHSA-23q7-59jj-2pj4"],"url":"https://o3.security/vulnerability/CVE-2020-12790","summary":"SEOmatic for CraftCMS allows Server-Side Template Injection","details":"In the SEOmatic plugin before 3.2.49 for Craft CMS, helpers/DynamicMeta.php does not properly sanitize the URL. This leads to Server-Side Template Injection and credentials disclosure via a crafted Twig template after a semicolon.","published":"2020-05-11T19:15:11.327Z","modified":"2026-07-08T20:58:13.092514Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Packagist","name":"nystudio107/craft-seomatic","fixedVersion":"3.2.49"}],"fix":{"url":"https://github.com/nystudio107/craft-seomatic/commit/82f4a25b28fd622393da6592dc9e5ccee7fc5be3#diff-52fd042c50432133a00a8f840f4a6165","label":"nystudio107/craft-seomatic@82f4a25"},"references":[{"type":"ADVISORY","url":"https://github.com/nystudio107/craft-seomatic/blob/v3/CHANGELOG.md#3249---20200324"},{"type":"ADVISORY","url":"https://github.com/nystudio107/craft-seomatic/releases/tag/3.2.49"},{"type":"FIX","url":"https://github.com/nystudio107/craft-seomatic/commit/82f4a25b28fd622393da6592dc9e5ccee7fc5be3#diff-52fd042c50432133a00a8f840f4a6165"},{"type":"EVIDENCE","url":"https://isec.pl/en/vulnerabilities/isec-0028-seomatic-ssti-23032020.txt"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T20:58:13.092514Z"}}