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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.

PUBLISHED Reserved 2026-02-01 | Published 2026-05-10 | Updated 2026-05-10 | Assigner VulnCheck




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

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

Product status

3.1.6
affected

Credits

Halit AKAYDIN (hLtAkydn) finder

References

www.exploit-db.com/exploits/50296 (ExploitDB-50296) exploit

evo.im/ (Official Product Homepage) product

github.com/evolution-cms/evolution/releases (Product Reference) product

www.vulncheck.com/...mote-code-execution-via-module-creation (VulnCheck Advisory: Evolution CMS 3.1.6 Authenticated Remote Code Execution via Module Creation) third-party-advisory

cve.org (CVE-2021-47939)

nvd.nist.gov (CVE-2021-47939)

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