CVE-2021-24603 : Security Advisory and Response

This article provides details about CVE-2021-24603, a vulnerability in the Site Reviews WordPress plugin version less than 5.13.1 that could lead to Cross-Site Scripting attacks when adding a review as an admin.

Understanding CVE-2021-24603

This section outlines the nature of the vulnerability and its impact.

What is CVE-2021-24603?

The Site Reviews WordPress plugin before version 5.13.1 fails to sanitize certain Review Details, allowing admins to execute Cross-Site Scripting attacks even when unfiltered_html is disallowed.

The Impact of CVE-2021-24603

The vulnerability could be exploited to inject malicious scripts into the website, potentially leading to unauthorized actions by attackers.

Technical Details of CVE-2021-24603

In this section, we dive deeper into the technical aspects of the CVE.

Vulnerability Description

The issue arises from the plugin's inadequate sanitization of Review Details, providing a loophole for attackers to inject malicious code.

Affected Systems and Versions

The vulnerability affects Site Reviews WordPress plugin versions prior to 5.13.1.

Exploitation Mechanism

Attackers with admin privileges can leverage this vulnerability to perform Cross-Site Scripting attacks, posing a security risk.

Mitigation and Prevention

This section focuses on preventing and addressing the CVE.

Immediate Steps to Take

Website administrators should update the Site Reviews plugin to version 5.13.1 or higher to mitigate the risk of exploitation.

Long-Term Security Practices

Regularly updating plugins and implementing security best practices can help prevent similar vulnerabilities in the future.

Patching and Updates

Developers should prioritize timely patch releases for known vulnerabilities and users must promptly apply these patches to secure their websites.