CVE-2021-39491 Explained : Impact and Mitigation

A Cross Site Scripting (XSS) vulnerability in Yogesh Ojha reNgine v1.0 allows malicious actors to execute scripts on a user's web browser.

Understanding CVE-2021-39491

This CVE describes a specific security issue within reNgine v1.0 that can lead to XSS attacks.

What is CVE-2021-39491?

The vulnerability enables attackers to inject and execute malicious scripts on a user's browser through the Scan Engine name file in the deletion confirmation modal box.

The Impact of CVE-2021-39491

The XSS vulnerability can be exploited to steal sensitive information, execute unauthorized actions, or deface websites, posing a significant risk to the security and integrity of affected systems.

Technical Details of CVE-2021-39491

This section covers specific technical aspects of the vulnerability.

Vulnerability Description

The XSS flaw in Yogesh Ojha reNgine v1.0 arises due to improper handling of user input in the Scan Engine name file during deletion confirmation, allowing attackers to inject and execute arbitrary scripts.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: Not applicable

Exploitation Mechanism

Malicious actors can craft a specifically designed Scan Engine name file to insert malicious scripts.
When a user interacts with the deletion confirmation modal box, the script gets executed, leading to unauthorized actions.

Mitigation and Prevention

Protecting systems from this vulnerability requires specific actions.

Immediate Steps to Take

Implement input validation to sanitize user inputs effectively.
Regularly monitor and validate user interactions to detect suspicious activities.

Long-Term Security Practices

Conduct security training for developers to raise awareness about secure coding practices.
Employ web application firewalls to filter and block malicious traffic.

Patching and Updates

Stay informed about security updates from Yogesh Ojha reNgine and apply patches promptly to address known vulnerabilities.