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CVE-2019-7441 Explained : Impact and Mitigation

Discover the vulnerability in version 1.6.8 of the WooCommerce PayPal Checkout Payment Gateway plugin for WordPress allowing users to purchase items at lower prices. Learn how to mitigate this security risk.

In version 1.6.8 of the WooCommerce PayPal Checkout Payment Gateway plugin for WordPress, a vulnerability exists in the cgi-bin/webscr?cmd=_cart feature. This flaw allows for parameter tampering in the amount parameter, enabling users to purchase items at a lower price than intended. The plugin author acknowledges the potential for manipulation in the PayPal payment process but ensures that the amount is cross-checked with the total order value in WooCommerce.

Understanding CVE-2019-7441

This CVE entry highlights a vulnerability in the WooCommerce PayPal Checkout Payment Gateway plugin for WordPress that could lead to unauthorized purchases at reduced prices.

What is CVE-2019-7441?

The vulnerability in version 1.6.8 of the WooCommerce PayPal Checkout Payment Gateway plugin for WordPress allows users to manipulate the amount parameter, potentially resulting in purchasing items at lower prices than intended.

The Impact of CVE-2019-7441

The vulnerability could lead to financial losses for merchants using the affected plugin if customers exploit the flaw to purchase items at reduced prices.

Technical Details of CVE-2019-7441

This section provides technical insights into the vulnerability.

Vulnerability Description

The vulnerability in the WooCommerce PayPal Checkout Payment Gateway plugin version 1.6.8 allows for parameter tampering in the amount parameter, enabling users to buy items at lower prices than intended.

Affected Systems and Versions

        Product: WooCommerce PayPal Checkout Payment Gateway plugin
        Vendor: N/A
        Version: 1.6.8

Exploitation Mechanism

Users can manipulate the amount parameter in the PayPal payment flow, potentially leading to unauthorized purchases at reduced prices.

Mitigation and Prevention

Protecting systems from this vulnerability is crucial to prevent financial losses and unauthorized purchases.

Immediate Steps to Take

        Update the WooCommerce PayPal Checkout Payment Gateway plugin to the latest version to patch the vulnerability.
        Monitor transactions for any suspicious activity related to price manipulation.

Long-Term Security Practices

        Regularly update plugins and software to mitigate potential vulnerabilities.
        Educate users and staff about the risks of manipulating payment parameters.

Patching and Updates

Ensure timely installation of security patches and updates to prevent exploitation of known vulnerabilities.

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