CVE-2021-25029 : Exploit Details and Defense Strategies

This article provides details about CVE-2021-25029, a vulnerability in the CLUEVO LMS, E-Learning Platform WordPress plugin before version 1.8.1 that could allow high privilege users to perform Cross-Site Scripting attacks.

Understanding CVE-2021-25029

This section will cover what CVE-2021-25029 is and its impact.

What is CVE-2021-25029?

The CLUEVO LMS, E-Learning Platform WordPress plugin before version 1.8.1 fails to sanitize and escape Course's module, enabling high privilege users to execute Cross-Site Scripting attacks even if unfiltered_html capability is restricted.

The Impact of CVE-2021-25029

The vulnerability could be exploited by malicious users to inject and execute arbitrary scripts on the affected website, potentially leading to data theft, account compromise, and other malicious activities.

Technical Details of CVE-2021-25029

This section will delve into the technical aspects of the vulnerability.

Vulnerability Description

CVE-2021-25029 is caused by the lack of proper sanitization in the Course's module of CLUEVO LMS WordPress plugin, allowing attackers to insert malicious scripts into the platform.

Affected Systems and Versions

CLUEVO LMS, E-Learning Platform WordPress plugin versions less than 1.8.1 are affected by this vulnerability.

Exploitation Mechanism

High privilege users can exploit this vulnerability by injecting malicious scripts via the Course's module, circumventing security restrictions.

Mitigation and Prevention

This section will outline steps to mitigate and prevent exploitation of CVE-2021-25029.

Immediate Steps to Take

Website administrators should update the CLUEVO LMS, E-Learning Platform plugin to version 1.8.1 or higher to remediate the vulnerability.

Long-Term Security Practices

Regularly monitor for plugin updates and security advisories, enforce least privilege access controls, and conduct security audits to identify and address vulnerabilities.

Patching and Updates

Stay informed about security patches released by the plugin vendor and promptly apply them to ensure the security of the website.