RCE in Evo Evolution Cms
CVE-2021-47939
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.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Evo Evolution Cms — versions 3.1.6
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/50296 (exploit)
- evo.im/ (product)
- github.com/evolution-cms/evolution/releases (product)
- www.vulncheck.com/advisories/evolution-cms-authenticated-remote-code-execution-… (third-party-advisory)
Frequently asked questions
- What is CVE-2021-47939?
- CVE-2021-47939 is a high-severity vulnerability in Evo Evolution Cms, classified under Code Injection. CVSS score: 8.8/10. Published 2026-05-10.
- How severe is CVE-2021-47939?
- High severity. CVSS v3 base score is 8.8 out of 10.