CVE-2021-36866 Explained : Impact and Mitigation

A detailed overview of the Authenticated Stored Cross-Site Scripting (XSS) vulnerability in the Easy Pricing Tables WordPress plugin version <= 3.1.2.

Understanding CVE-2021-36866

This section provides insights into the impact, technical details, and mitigation strategies related to the CVE-2021-36866 vulnerability.

What is CVE-2021-36866?

The CVE-2021-36866 vulnerability is an Authenticated Stored Cross-Site Scripting (XSS) flaw discovered in the Easy Pricing Tables plugin by Fatcat Apps, affecting versions up to 3.1.2 on WordPress.

The Impact of CVE-2021-36866

The vulnerability allows attackers with author or higher role privileges to inject malicious scripts into the plugin, potentially leading to unauthorized actions and compromise of user data.

Technical Details of CVE-2021-36866

This section covers specific technical aspects of the vulnerability to enhance understanding and facilitate effective mitigation.

Vulnerability Description

The XSS vulnerability arises due to inadequate input validation in the Easy Pricing Tables plugin, enabling attackers to store malicious scripts that are executed in the context of an authenticated user.

Affected Systems and Versions

Fatcat Apps Easy Pricing Tables plugin versions <= 3.1.2 deployed within WordPress installations are susceptible to this security issue.

Exploitation Mechanism

The vulnerability can be exploited by authenticated users with author or higher roles, allowing them to craft and store malicious scripts within the plugin settings.

Mitigation and Prevention

Protect your systems and data by taking immediate and long-term security measures to address and prevent CVE-2021-36866.

Immediate Steps to Take

Update the Easy Pricing Tables plugin to version 3.1.3 or higher to eliminate the vulnerability and enhance security posture promptly.

Long-Term Security Practices

Regularly monitor for plugin updates, conduct security assessments, enforce principle of least privilege, and educate users on safe practices to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security patches and updates released by Fatcat Apps, ensuring timely application to secure your WordPress environment from known vulnerabilities.