CVE-2021-34661 Explained : Impact and Mitigation

A detailed article on the vulnerability in WP Fusion Lite WordPress plugin that allows Cross-Site Request Forgery leading to data deletion.

Understanding CVE-2021-34661

This CVE describes a Cross-Site Request Forgery vulnerability in the WP Fusion Lite plugin.

What is CVE-2021-34661?

The WP Fusion Lite WordPress plugin is susceptible to Cross-Site Request Forgery via the

show_logs_section

function, enabling attackers to delete all logs in versions up to 3.37.18.

The Impact of CVE-2021-34661

This vulnerability poses a medium severity risk with a CVSS base score of 6.1, allowing attackers to manipulate the plugin's data through CSRF attacks.

Technical Details of CVE-2021-34661

A closer look at the vulnerability in WP Fusion Lite.

Vulnerability Description

The issue lies in the

~/includes/admin/logging/class-log-handler.php

file, facilitating CSRF attacks to delete all logs in the plugin.

Affected Systems and Versions

WP Fusion Lite versions up to and including 3.37.18 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this issue by tricking a logged-in user into visiting a malicious site, triggering unauthorized data deletion.

Mitigation and Prevention

Best practices to address and prevent the CVE-2021-34661 vulnerability.

Immediate Steps to Take

Update the WP Fusion Lite plugin to version 3.37.30 or newer to mitigate the CSRF vulnerability and prevent data deletion.

Long-Term Security Practices

Regularly update plugins, maintain vigilance against CSRF attacks, and educate users to recognize and avoid suspicious links.

Patching and Updates

Stay informed about security advisories and promptly apply patches and updates to ensure the protection of your WordPress site.