CVE-2026-30880: Basercms

Critical severity, CVSS 9.8. EPSS: 2.2% chance of exploitation in the next 30 days.

baserCMS is a website development framework. Prior to version 5.2.3, baserCMS has an OS command injection vulnerability in the installer. This issue has been patched in version 5.2.3.

Affected products

• Basercms Basercms: before 5.2.3 (fixed in 5.2.3)

Published 2026-03-31. Last modified 2026-06-17.