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High · 7.2 CVE-2021-47736 EUVD-2025-204838GHSA-353h-pmfp-h8fp

CMSimple_XH 1.7.4 Authenticated Remote Code Execution via Content Editing

Published Dec 23, 2025 · Updated Jul 15, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
Cmsimple-Xh CMSimple_XH 1.7.4 —

References