What’s Vulnerable › Vulnerabilities

CVE-2021-47939: Evolution CMS 3.1.6 Authenticated Remote Code Execution via Module Creation

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-10 · updated 2026-07-25
• Weakness: CWE-94

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.

Affected products

• Evolution CMS: 3.1.6

References

• 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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