CVE-2020-18890: Puppycms

Critical severity, CVSS 9.8. EPSS: 1.5% chance of exploitation in the next 30 days.

Rmote Code Execution (RCE) vulnerability in puppyCMS v5.1 due to insecure permissions, which could let a remote malicious user getshell via /admin/functions.php.

Affected products

• Puppycms Puppycms: version 5.1 only

Published 2021-05-06. Last modified 2026-06-17.