CVE-2018-18783: Sem-CMS Semcms

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

XSS was discovered in SEMCMS V3.4 via the semcms_remail.php?type=ok umail parameter.

Affected products

• Sem-CMS Semcms: version 3.4 only

Published 2018-10-29. Last modified 2026-06-17.