CVE-2021-47736 - CVE House
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Status published High CVE-2021-47736

CMSimple_XH 1.7.4 Authenticated Remote Code Execution via Content Editing

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Halit AKAYDIN (hLtAkydn)

Affected Vendor

Cmsimple-Xh

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Affected Software

CMSimple_XH
Vulnerable Versions:
1.7.4

Timeline

Official Publish: December 23rd, 2025
Last Modified: July 15th, 2026
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)