CVE-2021-42645: Cmsimple-Xh Cmsimple Xh

Critical severity, CVSS 10.0. EPSS: 4.8% chance of exploitation in the next 30 days.

CMSimple_XH 1.7.4 is affected by a remote code execution (RCE) vulnerability. To exploit this vulnerability, an attacker must use the "File" parameter to upload a PHP payload to get a reverse shell from the vulnerable host.

Affected products

Published 2022-05-10. Last modified 2026-06-17.