CVE-2020-12790

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.

• CWE-74

• https://github.com/nystudio107/craft-seomatic/blob/v3/CHANGELOG.md#3249---20200324Release Notes, Third Party Advisory
• https://github.com/nystudio107/craft-seomatic/commit/82f4a25b28fd622393da6592dc9e5ccee7fc5be3#diff-52fd042c50432133a00a8f840f4a6165Patch, Third Party Advisory
• https://github.com/nystudio107/craft-seomatic/releases/tag/3.2.49Release Notes, Third Party Advisory
• https://isec.pl/en/vulnerabilities/isec-0028-seomatic-ssti-23032020.txtExploit, Third Party Advisory
• https://github.com/nystudio107/craft-seomatic/blob/v3/CHANGELOG.md#3249---20200324Release Notes, Third Party Advisory
• https://github.com/nystudio107/craft-seomatic/commit/82f4a25b28fd622393da6592dc9e5ccee7fc5be3#diff-52fd042c50432133a00a8f840f4a6165Patch, Third Party Advisory
• https://github.com/nystudio107/craft-seomatic/releases/tag/3.2.49Release Notes, Third Party Advisory
• https://isec.pl/en/vulnerabilities/isec-0028-seomatic-ssti-23032020.txtExploit, Third Party Advisory

Published

May 11, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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