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.
https://github.com/nystudio107/craft-seomatic/releases/tag/3.2.49
https://github.com/nystudio107/craft-seomatic/commit/82f4a25b28fd622393da6592dc9e5ccee7fc5be3#diff-52fd042c50432133a00a8f840f4a6165
https://github.com/nystudio107/craft-seomatic/blob/v3/CHANGELOG.md#3249---20200324
https://isec.pl/en/vulnerabilities/isec-0028-seomatic-ssti-23032020.txt
Source: Mitre, NVD
Published: 2020-05-11
Updated: 2026-06-17
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity: High
EPSS: 0.00458