{"id":"CVE-2021-41750","details":"A cross-site scripting (XSS) vulnerability in the SEOmatic plugin 3.4.10 for Craft CMS 3 allows remote attackers to inject arbitrary web script via a GET to /index.php?action=seomatic/file/seo-file-link with url parameter containing the base64 encoded URL of a malicious web page / file and fileName parameter containing an arbitrary filename with the intended content-type to be rendered in the user's browser as the extension.","aliases":["GHSA-6hjc-m38h-7jhh"],"modified":"2026-07-09T01:07:36.780892Z","published":"2022-06-12T12:15:07.910Z","references":[{"type":"ADVISORY","url":"https://github.com/nystudio107/craft-seomatic/blob/develop/CHANGELOG.md"},{"type":"FIX","url":"https://github.com/nystudio107/craft-seomatic/commit/4e46b792ce973ac0c652fb330055f41aca1981c8"},{"type":"FIX","url":"https://github.com/nystudio107/craft-seomatic/commit/5f2cdc7c39e0a4bfb60d2f84131508f0a87b2873"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nystudio107/craft-seomatic","events":[{"introduced":"21fd6077413ce82fcd0971a7524e027a7bb51e73"},{"last_affected":"21fd6077413ce82fcd0971a7524e027a7bb51e73"},{"fixed":"4e46b792ce973ac0c652fb330055f41aca1981c8"},{"fixed":"5f2cdc7c39e0a4bfb60d2f84131508f0a87b2873"}],"database_specific":{"cpe":"cpe:2.3:a:nystudio107:seomatic:3.4.10:*:*:*:*:craft_cms:*:*","extracted_events":[{"introduced":"3.4.10"},{"last_affected":"3.4.10"}],"source":["CPE_STRING","REFERENCES"]}}],"versions":["3.4.10"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41750.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}