Vulnerability Database

318,275

Total vulnerabilities in the database

CVE-2021-42645

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.

  • Published: May 10, 2022
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-42645
  • Severity: Critical
  • Exploit:

CVSS v3:

  • Severity: Critical
  • Score: 10
  • AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS v2:

  • Severity: High
  • Score: 10
  • AV:N/AC:L/Au:N/C:C/I:C/A:C

CWEs:

Software From Fixed in
cmsimple-xh / cmsimple_xh 1.7.4 1.7.4.x