A Server-side Template Injection (SSTI) vulnerability exists in Nystudio107 Seomatic 3.4.12 in src/helpers/UrlHelper.php via the host header.
{ "versions": [ { "introduced": "0" }, { "last_affected": "3.4.12" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44618.json"