CVE-2021-24904 : Exploit Details and Defense Strategies

This article provides detailed information about CVE-2021-24904, a vulnerability found in the Mortgage Calculators WP WordPress plugin before version 1.56 that can lead to Stored Cross-Site Scripting attacks.

Understanding CVE-2021-24904

This section will cover what CVE-2021-24904 is and its impact on systems.

What is CVE-2021-24904?

The Mortgage Calculators WP plugin version 1.56 and below lack sanitization on the background color setting, posing a risk of Stored Cross-Site Scripting attacks by high privilege users.

The Impact of CVE-2021-24904

This vulnerability allows attackers to execute malicious scripts on a website, compromising user data and system integrity.

Technical Details of CVE-2021-24904

Explore the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The lack of sanitization in the background color setting enables attackers to inject harmful scripts, leading to Stored Cross-Site Scripting attacks.

Affected Systems and Versions

The Mortgage Calculators WP plugin versions earlier than 1.56 are vulnerable to this exploit.

Exploitation Mechanism

High privilege users can abuse the unfiltered_html capability to execute malicious scripts through the color setting of the calculator background.

Mitigation and Prevention

Learn how to address and prevent CVE-2021-24904 to secure your systems.

Immediate Steps to Take

Website administrators should update the Mortgage Calculators WP plugin to version 1.56 or newer to mitigate the risk of Stored Cross-Site Scripting attacks.

Long-Term Security Practices

Implement regular security audits, user input validation, and monitoring to enhance the overall security posture of the website.

Patching and Updates

Stay informed about security patches and updates for the Mortgage Calculators WP plugin to address known vulnerabilities and protect against potential exploits.