CVE-2021-47736

HIGH 7.2

CMSimple_XH 1.7.4 Authenticated Remote Code Execution via Content Editing

CVSS Score

7.2

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-94
Vendor	cmsimple-xh
Product	cmsimple_xh
Published	Dec 23, 2025
Last Updated	Jul 15, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Cmsimple-Xh / CMSimple_XH

1.7.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/50367 cmsimple-xh.org: https://www.cmsimple-xh.org/ vulncheck.com: https://www.vulncheck.com/advisories/cmsimplexh-authenticated-remote-code-execution-via-content-editing

Credits

Halit AKAYDIN (hLtAkydn)