CVE-2021-4121 Explained : Impact and Mitigation

A detailed overview of the Cross-site Scripting (XSS) vulnerability affecting yetiforcecompany/yetiforcecrm.

Understanding CVE-2021-4121

This section provides insights into the nature and impact of the CVE-2021-4121 vulnerability.

What is CVE-2021-4121?

The CVE-2021-4121 vulnerability pertains to a Cross-site Scripting (XSS) issue found in yetiforcecompany/yetiforcecrm, which allows improper neutralization of input during web page generation.

The Impact of CVE-2021-4121

The vulnerability's severity is rated as MEDIUM with a base score of 6.4 in the CVSSv3.0 metrics. It could lead to low integrity impact and availability impact with low privileges required for exploitation.

Technical Details of CVE-2021-4121

This section delves into the technical aspects of the CVE-2021-4121 vulnerability.

Vulnerability Description

The vulnerability allows for an attacker to carry out Cross-site Scripting (XSS) attacks due to improper handling of input during web page generation.

Affected Systems and Versions

The vulnerability affects yetiforcecompany/yetiforcecrm versions less than 6.4.0.

Exploitation Mechanism

The attack complexity is rated as LOW with a network-based attack vector and no user interaction required.

Mitigation and Prevention

In this section, we discuss the steps to mitigate and prevent exploitation of the CVE-2021-4121 vulnerability.

Immediate Steps to Take

Users are advised to update yetiforcecompany/yetiforcecrm to version 6.4.0 or above to mitigate the XSS vulnerability.

Long-Term Security Practices

Implement secure coding practices, input validation, and output encoding to prevent XSS attacks in web applications.

Patching and Updates

Regularly apply security patches and updates provided by yetiforcecompany to stay protected against emerging vulnerabilities.