CVE-2021-47778
7.2 · HIGHOverview
CVE-2021-47778 is a high-severity vulnerability affecting get-simple getsimplecms. It was published on January 21, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from get-simple. Update getsimplecms to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
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Frequently Asked Questions
What is CVE-2021-47778?
CVE-2021-47778 is a high-severity vulnerability affecting get-simple getsimplecms. It was published on January 21, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).
How severe is CVE-2021-47778?
This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-47778?
Check the references section for vendor advisories and patches from get-simple. Update getsimplecms to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-47778?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-47778 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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