CVE-2021-47736

CMSimple_XH 1.7.4 Authenticated Remote Code Execution via Content Editing

CVSS 8.6 HIGHEPSS 0.9%CWE-94

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.6EPSS 0.9%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

23 Dec 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products

Cmsimple-Xh · CMSimple_XH

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References

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