CVE-2021-43484: Simple Client Management System Project Simple Client Management System

Critical severity, CVSS 9.8. EPSS: 3.5% chance of exploitation in the next 30 days.

A Remote Code Execution (RCE) vulnerability exists in Simple Client Management System 1.0 in create.php due to the failure to validate the extension of the file being sent in a request.

Affected products

• Simple Client Management System Project Simple Client Management System: version 1.0 only

Published 2022-03-31. Last modified 2026-06-17.