CVE-2021-24820 : What You Need to Know

Cost Calculator WordPress plugin through 1.6 allows authenticated users to perform path traversal and local PHP file inclusion on Windows Web Servers.

Understanding CVE-2021-24820

This CVE involves a security vulnerability in the Cost Calculator WordPress plugin that allows authenticated users to exploit path traversal and local PHP file inclusion on Windows Web Servers.

What is CVE-2021-24820?

The Cost Calculator plugin version <= 1.6 permits authenticated users to execute malicious actions like path traversal and local PHP file inclusion on Windows Web Servers.

The Impact of CVE-2021-24820

This vulnerability can be exploited by authenticated users, leading to unauthorized access to sensitive files and information on affected systems.

Technical Details of CVE-2021-24820

The following technical aspects of CVE-2021-24820 are essential to understand.

Vulnerability Description

Users with Contributor+ privileges in versions < 1.5 and Admin+ in versions <= 1.6 can exploit the plugin to perform path traversal and local PHP file inclusion.

Affected Systems and Versions

The Cost Calculator plugin versions up to 1.6 are impacted by this vulnerability, allowing attackers to compromise Windows Web Servers.

Exploitation Mechanism

By leveraging the plugin's functionalities, attackers can navigate through directories and include arbitrary PHP files, potentially leading to complete system compromise.

Mitigation and Prevention

To address CVE-2021-24820 and enhance security measures, certain steps need to be taken.

Immediate Steps to Take

Upgrade to the latest version of the Cost Calculator plugin to ensure the vulnerability is patched.
Monitor server logs for any suspicious activities indicating exploitation attempts.

Long-Term Security Practices

Implement strong authentication mechanisms to prevent unauthorized access.
Regularly audit and review file permissions to restrict access to critical files.

Patching and Updates

Stay informed about security updates for the Cost Calculator plugin and promptly apply patches to mitigate potential risks.