CVE-2023-39681: Cuppacms

Critical severity, CVSS 9.8. EPSS: 1.7% chance of exploitation in the next 30 days.

Cuppa CMS v1.0 was discovered to contain a remote code execution (RCE) vulnerability via the email_outgoing parameter at /Configuration.php. This vulnerability is triggered via a crafted payload.

Affected products

• Cuppacms Cuppacms: version 1.0 only

Published 2023-09-05. Last modified 2026-06-17.