Arbitrary Code Injection Affecting evolutioncms/evolution package, versions >=3.1.6


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.64% (46th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Arbitrary Code Injection vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-PHP-EVOLUTIONCMSEVOLUTION-16624676
  • published10 May 2026
  • disclosed10 May 2026
  • creditHalit AKAYDIN

Introduced: 10 May 2026

CVE-2021-47939  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

There is no fixed version for evolutioncms/evolution.

Overview

evolutioncms/evolution is an Evolution CMS is a Content Management System, ex MODX Evolution

Affected versions of this package are vulnerable to Arbitrary Code Injection via the post parameter in the module creation process. An attacker can execute arbitrary system commands by injecting malicious PHP code, which is then executed when the module is invoked. This is only exploitable if the attacker has authenticated access with module creation permissions.

References

CVSS Base Scores

version 4.0
version 3.1