CVE-2021-3831 Explained : Impact and Mitigation
Learn about CVE-2021-3831, a High Severity Cross-site Scripting (XSS) vulnerability in gnuboard5. Find out the impact, affected versions, and mitigation steps.
A detailed overview of the Cross-site Scripting (XSS) vulnerability (CVE-2021-3831) affecting gnuboard/gnuboard5.
Understanding CVE-2021-3831
This section provides insights into the nature and impact of the CVE-2021-3831 vulnerability.
What is CVE-2021-3831?
The vulnerability in gnuboard/gnuboard5 involves Improper Neutralization of Input During Web Page Generation, leading to Cross-site Scripting (XSS) exploits.
The Impact of CVE-2021-3831
With a CVSS base score of 7.1 (High Severity), this vulnerability can result in compromised data integrity and high availability impact.
Technical Details of CVE-2021-3831
Explore the specific technical aspects of the CVE-2021-3831 vulnerability.
Vulnerability Description
The vulnerability allows attackers to perform XSS attacks due to improper input neutralization during web page generation.
Affected Systems and Versions
Users of gnuboard5 with versions less than 5.4.20 are impacted by this CVE.
Exploitation Mechanism
The vulnerability can be exploited locally with low attack complexity and privileges required.
Mitigation and Prevention
Discover essential steps to mitigate the risks associated with CVE-2021-3831.
Immediate Steps to Take
Users should update gnuboard/gnuboard5 to version 5.4.20 or higher to eliminate the vulnerability and enhance security.
Long-Term Security Practices
Implement secure coding practices and conduct regular security audits to prevent similar vulnerabilities in the future.
Patching and Updates
Stay informed about security patches and updates provided by the vendor to address known vulnerabilities effectively.