CVE-2021-4376 Explained : Impact and Mitigation

A vulnerability has been identified in the WooCommerce Multi Currency plugin for WordPress that allows authenticated attackers to change the price of a product to an arbitrary value.

Understanding CVE-2021-4376

This section delves into the details of CVE-2021-4376.

What is CVE-2021-4376?

The WooCommerce Multi Currency plugin for WordPress is susceptible to a Missing Authorization vulnerability in versions up to and including 2.1.17. This flaw enables authenticated attackers to manipulate product prices.

The Impact of CVE-2021-4376

The vulnerability can be exploited by malicious actors to alter prices of products within the affected plugin, potentially leading to financial harm or disruption for online businesses.

Technical Details of CVE-2021-4376

Here are the technical specifics of CVE-2021-4376.

Vulnerability Description

The issue stems from inadequate authorization controls in the WooCommerce Multi Currency plugin, allowing authenticated attackers to modify product prices without proper permission.

Affected Systems and Versions

The vulnerability impacts versions of the CURCY plugin up to and including 2.1.17. Users with these versions are advised to take immediate action.

Exploitation Mechanism

With authenticated access, attackers can leverage the Missing Authorization flaw to change product prices to arbitrary values, potentially causing financial losses for businesses.

Mitigation and Prevention

Learn how to safeguard your system against CVE-2021-4376.

Immediate Steps to Take

Affected users should update the WooCommerce Multi Currency plugin to version 2.1.18 or later to patch the vulnerability and prevent unauthorized price changes.

Long-Term Security Practices

Implement strict access controls and user permissions to mitigate similar authorization vulnerabilities in the future.

Patching and Updates

Regularly monitor for plugin updates and security advisories to ensure your WordPress environment remains secure.