VULNERABILITY INTELLIGENCE
CVE-2021-47736
CVSS score7.2 HIGH
EPSS probability1.08%
CISA KEVNot currently listed
Published2025-12-23
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Description
CMSimple_XH 1.7.4 contains an authenticated remote code execution vulnerability in the content editing functionality that allows administrative users to upload malicious PHP files. Attackers with valid credentials can exploit the CSRF token mechanism to create a PHP shell file that enables arbitrary command execution on the server.
Weakness classification
- disclosure@vulncheck.com: CWE-94
Primary references
- disclosure@vulncheck.com — Product
- disclosure@vulncheck.com — Exploit, Third Party Advisory, VDB Entry
- disclosure@vulncheck.com — Third Party Advisory