RCE in Get-Simple Getsimplecms
CVE-2021-47778
GetSimple CMS My SMTP Contact Plugin 1.1.2 contains a PHP code injection vulnerability. An authenticated administrator can inject arbitrary PHP code through plugin configuration parameters, leading to remote code execution on the server.
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.011 (61.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Get-simple Getsimplecms — versions 1.1.2
- Get-simple My Smtp Contact Plugin — versions 1.1.2
Weakness classification (CWE)
References
- ExploitDB-49774 (Exploit, exploit, Third Party Advisory, VDB Entry)
- Vendor Homepage (Product, product)
- GetSimple CMS GitHub Repository (Product, product)
- Full Disclosure Repository (Exploit, technical-description, exploit, Third Party Advisory)
- VulnCheck Advisory: GetSimple CMS My SMTP Contact Plugin 1.1.2 - PHP Code Injection (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2021-47778?
- CVE-2021-47778 is a high-severity vulnerability in Get-Simple Getsimplecms, classified under Code Injection. CVSS score: 7.2/10. Published 2026-01-21.
- How severe is CVE-2021-47778?
- High severity. CVSS v3 base score is 7.2 out of 10.