CVE-2021-3831
6.1 · MEDIUMOverview
CVE-2021-3831 is a medium-severity vulnerability affecting gnuboard gnuboard5. It was published on December 14, 2021 and has a CVSS 3.1 base score of 6.1 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
gnuboard5 is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Remediation
Check the references section for vendor advisories and patches from gnuboard. Update gnuboard5 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 |
|---|---|---|---|
| gnuboard | gnuboard5 | >= 0, < 5.4.20 | Affected |
References
Frequently Asked Questions
What is CVE-2021-3831?
CVE-2021-3831 is a medium-severity vulnerability affecting gnuboard gnuboard5. It was published on December 14, 2021 and has a CVSS 3.1 base score of 6.1 (MEDIUM).
How severe is CVE-2021-3831?
This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-3831?
Check the references section for vendor advisories and patches from gnuboard. Update gnuboard5 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-2021-3831?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-3831 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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