CVE-2021-47736

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.

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.cmsimple-xh.org/	Product
https://www.exploit-db.com/exploits/50367	Exploit Third Party Advisory VDB Entry
https://www.vulncheck.com/advisories/cmsimplexh-authenticated-remote-code-execution-via-content-editing	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:cmsimple-xh:cmsimple_xh:1.7.4:-:*:*:*:*:*:*

History

05 Jan 2026, 14:15

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~8.8~~	v2 : unknown v3 : 7.2

31 Dec 2025, 21:42

Type	Values Removed	Values Added
References	~~() https://www.cmsimple-xh.org/ -~~	() https://www.cmsimple-xh.org/ - Product
References	~~() https://www.exploit-db.com/exploits/50367 -~~	() https://www.exploit-db.com/exploits/50367 - Exploit, Third Party Advisory, VDB Entry
References	~~() https://www.vulncheck.com/advisories/cmsimplexh-authenticated-remote-code-execution-via-content-editing -~~	() https://www.vulncheck.com/advisories/cmsimplexh-authenticated-remote-code-execution-via-content-editing - Third Party Advisory
CPE		cpe:2.3:a:cmsimple-xh:cmsimple_xh:1.7.4:-::::::
First Time		Cmsimple-xh cmsimple Xh Cmsimple-xh

23 Dec 2025, 20:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-23 20:15

Updated : 2026-01-05 14:15

NVD link : CVE-2021-47736

Mitre link : CVE-2021-47736

CVE.ORG link : CVE-2021-47736

JSON object : View

Products Affected

cmsimple-xh

cmsimple_xh

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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