CVE-2021-24966 Explained : Impact and Mitigation

This article provides detailed information about CVE-2021-24966, a vulnerability found in the Error Log Viewer WordPress plugin version 1.1.1 and earlier.

Understanding CVE-2021-24966

This section delves into the description, impact, technical details, and mitigation steps related to CVE-2021-24966.

What is CVE-2021-24966?

The Error Log Viewer Plugin version 1.1.1 and earlier fails to validate the log file path, enabling high-privilege users to clear arbitrary files on the server.

The Impact of CVE-2021-24966

The vulnerability allows attackers to manipulate log file paths, potentially leading to the deletion of critical files or data on the web server.

Technical Details of CVE-2021-24966

Let's explore the specifics of this vulnerability, including its description, affected systems, and exploitation method.

Vulnerability Description

The flaw in the Error Log Viewer Plugin by BestWebSoft version 1.1.1 allows users to specify any file path, leading to unauthorized file clearing.

Affected Systems and Versions

The vulnerability affects versions of the Error Log Viewer plugin up to and including 1.1.1.

Exploitation Mechanism

By exploiting this issue, malicious users with admin privileges can target log files outside the intended blog folder, posing a severe security risk.

Mitigation and Prevention

Learn how to protect your systems against CVE-2021-24966 by taking immediate and long-term security measures.

Immediate Steps to Take

Web admins should disable or uninstall the Error Log Viewer Plugin immediately to prevent unauthorized file deletions.

Long-Term Security Practices

Enforce strict file path validation, conduct regular security audits, and maintain up-to-date plugins to mitigate similar risks.

Patching and Updates

Monitor for security patches from the plugin vendor and apply updates promptly to address CVE-2021-24966.