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Vulnerability record · CVE-2021-47939 · published 10 May 2026

CVE-2021-47939: Code injection vulnerability

Evolution CMS 3.1.6 contains a remote code execution vulnerability that allows authenticated users with module creation permissions to execute arbitrary system commands by injecting PHP code into module parameters. Attackers can send POST requests to /manager/index.php with malicious PHP code in the 'post' parameter to create modules that execute arbitrary commands when invoked.

8.7 CVSS 4.0 High EPSS 0.64% · top 51.5% CWE-94 · Code injection Deferred
8.7CVSS 4.0 base score
0.64%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
25 Jul 2026Last modified by NVD

Description

Evolution CMS 3.1.6 contains a remote code execution vulnerability that allows authenticated users with module creation permissions to execute arbitrary system commands by injecting PHP code into module parameters. Attackers can send POST requests to /manager/index.php with malicious PHP code in the 'post' parameter to create modules that execute arbitrary commands when invoked.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://evo.im/
https://github.com/evolution-cms/evolution/releases
https://www.exploit-db.com/exploits/50296
https://www.vulncheck.com/advisories/evolution-cms-authenticated-remote-code-execution-via-module-creation

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Source: NIST National Vulnerability Database (record CVE-2021-47939), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.