CVE-2021-24135 : What You Need to Know

A Stored Cross-Site Scripting vulnerability exists in versions prior to 3.4.3 of the WP Customer Reviews WordPress plugin. This flaw could allow malicious actors to insert arbitrary JavaScript code or HTML.

Understanding CVE-2021-24135

This vulnerability, assigned CVE-2021-24135, stems from unvalidated input and a lack of output encoding in the WP Customer Reviews plugin.

What is CVE-2021-24135?

CVE-2021-24135 is a Cross-Site Scripting vulnerability found in versions below 3.4.3 of the WP Customer Reviews WordPress plugin.

The Impact of CVE-2021-24135

The vulnerability can be exploited by remote attackers to execute malicious scripts, potentially compromising the security and integrity of the affected WordPress websites.

Technical Details of CVE-2021-24135

The following technical aspects are associated with CVE-2021-24135:

Vulnerability Description

A lack of proper input validation and output encoding in the WP Customer Reviews plugin leads to Stored Cross-Site Scripting vulnerabilities.

Affected Systems and Versions

Versions earlier than 3.4.3 of the WP Customer Reviews WordPress plugin are affected by this vulnerability.

Exploitation Mechanism

Remote attackers can leverage this vulnerability to inject arbitrary JavaScript or HTML code into the web application, potentially leading to sensitive data exposure or remote code execution.

Mitigation and Prevention

To safeguard systems from CVE-2021-24135, consider the following measures:

Immediate Steps to Take

Update the WP Customer Reviews plugin to version 3.4.3 or higher to mitigate the vulnerability.
Regularly monitor for security advisories and apply patches promptly.

Long-Term Security Practices

Implement strict input validation and output encoding practices in plugins and themes.
Educate developers and users about secure coding practices to prevent Cross-Site Scripting vulnerabilities.

Patching and Updates

Stay informed about security updates released by the plugin vendor and promptly apply patches to eliminate known vulnerabilities.