Vulnerability · Published Jan 21, 2026 · Assigned by VulnCheck
CVE-2021-47778GetSimple CMS My SMTP Contact Plugin 1.1.2 - PHP Code Injection
High 8.6
In plain English
A high-severity code injection in My SMTP Contact Plugin from Get-Simple. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities).
Severity (CVSS 4.0)8.6High
Exploit odds (30 days)1.3%top 29.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Get-Simple | My SMTP Contact Plugin | 1.1.2 |
Weakness: CWE-94 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References
- ExploitDB-49774 exploit
- Vendor Homepage product
- GetSimple CMS GitHub Repository product
- Full Disclosure Repository technical-description, exploit
- VulnCheck Advisory: GetSimple CMS My SMTP Contact Plugin 1.1.2 - PHP Code Injection third-party-advisory