CVE-2021-25111 Explained : Impact and Mitigation

A detailed overview of CVE-2021-25111, a vulnerability in the English WordPress Admin plugin before version 1.5.2 that exposes users to an unauthenticated open redirect issue.

Understanding CVE-2021-25111

This section delves into the impact and technical details of the CVE-2021-25111 vulnerability.

What is CVE-2021-25111?

The English WordPress Admin WordPress plugin before version 1.5.2 lacks validation for the admin_custom_language_return_url, resulting in an open redirect vulnerability.

The Impact of CVE-2021-25111

The vulnerability allows attackers to redirect users to malicious websites, potentially leading to further exploitation of sensitive information or phishing attacks.

Technical Details of CVE-2021-25111

Explore the specific technical aspects of the CVE-2021-25111 vulnerability.

Vulnerability Description

The English WordPress Admin plugin version prior to 1.5.2 fails to validate the admin_custom_language_return_url, enabling unauthorized parties to redirect users to untrusted websites.

Affected Systems and Versions

The CVE impacts English WordPress Admin versions up to 1.5.2, exposing all users of these versions to the open redirect vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a specially designed URL in the redirect request to lead users to malicious sites.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-25111.

Immediate Steps to Take

Users are advised to update their English WordPress Admin plugin to version 1.5.2 or later to mitigate the open redirect vulnerability.

Long-Term Security Practices

Implement secure coding practices, regular security audits, and user awareness training to enhance overall WordPress plugin security.

Patching and Updates

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