CVE-2020-9757

SEOmatic for CraftCMS allows Server-Side Template Injection

Published 4 Mar 2020Modified 17 Jun 2026CWE 74

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

GHSA9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD, GHSA.

Description

The SEOmatic component before 3.3.0 for Craft CMS allows Server-Side Template Injection that leads to RCE via malformed data to the metacontainers controller.

Affected packages and fixed versions

Source	Package	Fixed in
composer::GitHub Security Advisory Composer	nystudio107/craft-seomatic	3.3.0

References

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