CVE-2021-24510 : What You Need to Know

A detailed analysis of the CVE-2021-24510 vulnerability affecting the MF Gig Calendar WordPress plugin.

Understanding CVE-2021-24510

This section provides insights into the nature of the vulnerability and its impact.

What is CVE-2021-24510?

The CVE-2021-24510, also known as MF Gig Calendar < 1.2 - Reflected Cross-Site Scripting (XSS), exposes a flaw in the MF Gig Calendar WordPress plugin version prior to 1.2. This vulnerability arises due to the lack of sanitization and escaping of the id GET parameter when displaying content in the admin dashboard while editing an Event.

The Impact of CVE-2021-24510

The lack of input validation allows attackers to inject malicious scripts into the web application, leading to potential Cross-Site Scripting attacks. This can result in unauthorized access, data theft, and the manipulation of content displayed to users.

Technical Details of CVE-2021-24510

Delve deeper into the technical aspects of the CVE-2021-24510 vulnerability.

Vulnerability Description

The vulnerability in the MF Gig Calendar plugin occurs because the id GET parameter is not properly sanitized, enabling attackers to inject and execute malicious scripts within the context of the web application.

Affected Systems and Versions

The issue impacts MF Gig Calendar plugin versions prior to 1.2, making websites with these versions vulnerable to Cross-Site Scripting attacks.

Exploitation Mechanism

Exploiting CVE-2021-24510 involves crafting a malicious URL containing a specially crafted id parameter to execute arbitrary scripts when accessed through the vulnerable plugin.

Mitigation and Prevention

Explore the methods to mitigate and prevent the exploitation of CVE-2021-24510.

Immediate Steps to Take

Website administrators should update the MF Gig Calendar plugin to version 1.2 or newer to patch the vulnerability and prevent potential XSS attacks. Additionally, input validation and output encoding techniques should be employed to mitigate Cross-Site Scripting risks.

Long-Term Security Practices

Implement regular security audits and code reviews to identify and address vulnerabilities proactively. Educate developers on secure coding practices to prevent similar issues in the future.

Patching and Updates

Stay informed about security updates for the MF Gig Calendar plugin and apply patches promptly to ensure the protection of your website from known vulnerabilities.