CVE-2018-18426: S-CMS

High severity, CVSS 8.8. EPSS: 2.4% chance of exploitation in the next 30 days.

s-cms 3.0 allows remote attackers to execute arbitrary PHP code by placing this code in a crafted User-agent Disallow value in the robots.php txt parameter.

Affected products

• S-CMS S-CMS: version 3.0 only

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