CVE-2021-24920 : What You Need to Know

The StatCounter WordPress plugin before version 2.0.7 is affected by a stored Cross-Site Scripting vulnerability due to improper sanitization of Project ID and Secure Code settings, allowing high privilege users to execute XSS attacks.

Understanding CVE-2021-24920

This CVE identifies a security issue in the StatCounter WordPress plugin version below 2.0.7, enabling attackers with high privileges to carry out Cross-Site Scripting attacks.

What is CVE-2021-24920?

The CVE-2021-24920 vulnerability in the StatCounter WordPress plugin (before 2.0.7) arises from the lack of proper sanitization and escape mechanisms for Project ID and Secure Code settings. This flaw can be exploited by high privilege users to perform XSS attacks, even with restricted capabilities.

The Impact of CVE-2021-24920

Exploitation of this vulnerability could lead to unauthorized script execution, potentially compromising user data, session cookies, and other sensitive information. Attackers could manipulate content, deface websites, or redirect users to malicious sites.

Technical Details of CVE-2021-24920

The details of this vulnerability include the specific description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The StatCounter WordPress plugin version prior to 2.0.7 fails to properly sanitize and escape Project ID and Secure Code settings, exposing it to Cross-Site Scripting attacks.

Affected Systems and Versions

Systems using StatCounter plugin version below 2.0.7 are vulnerable to this stored XSS issue. Users should update to version 2.0.7 or newer to mitigate the risk.

Exploitation Mechanism

By leveraging the lack of input sanitization in Project ID and Secure Code settings, high privilege users can inject malicious scripts through various input fields.

Mitigation and Prevention

Protecting systems against CVE-2021-24920 involves taking immediate steps and implementing long-term security practices.

Immediate Steps to Take

Users should upgrade the StatCounter WordPress plugin to version 2.0.7 or above to patch the vulnerability. It is crucial to restrict high privilege user access and monitor for any unauthorized activities.

Long-Term Security Practices

Implement security best practices such as regular security audits, code reviews, and educating users on identifying and reporting suspicious activities to prevent similar vulnerabilities.

Patching and Updates

Stay informed about security updates for installed plugins and promptly apply patches released by the plugin developers to address known vulnerabilities.