CVE-2023-30090: Sem-CMS Semcms

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Semcms Shop v4.2 was discovered to contain an arbitrary file uplaod vulnerability via the component SEMCMS_Upfile.php. This vulnerability allows attackers to execute arbitrary code via uploading a crafted PHP file.

Affected products

• Sem-CMS Semcms: version 4.2 only

Published 2023-05-05. Last modified 2026-06-17.