CVE-2021-43961 Explained : Impact and Mitigation

Sonatype Nexus Repository Manager 3.36.0 is affected by an HTML Injection vulnerability.

Understanding CVE-2021-43961

This CVE describes a security issue in Sonatype Nexus Repository Manager 3.36.0 that allows for HTML Injection.

What is CVE-2021-43961?

HTML Injection is a type of attack where an attacker can inject malicious HTML content into a vulnerable web application.

The Impact of CVE-2021-43961

Attackers can inject malicious HTML code into web pages viewed by other users, potentially leading to various attacks such as phishing or defacement.

Technical Details of CVE-2021-43961

Sonatype Nexus Repository Manager 3.36.0 is susceptible to HTML Injection.

Vulnerability Description

Vulnerability Type: HTML Injection
Version Affected: 3.36.0

Affected Systems and Versions

Affected Version: 3.36.0

Exploitation Mechanism

An attacker can exploit this vulnerability by injecting malicious HTML code through certain input fields or parameters.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2021-43961.

Immediate Steps to Take

Update Sonatype Nexus Repository Manager to a patched version that addresses the HTML Injection vulnerability.
Implement input validation to sanitize user-controlled input and prevent malicious code injection.

Long-Term Security Practices

Regularly monitor and audit the application for security vulnerabilities.

Patching and Updates

Stay informed about security updates for Sonatype Nexus Repository Manager and apply patches promptly.