Welcart e-Commerce Unauthenticated Order Status Manipulation

Executive Summary

This vulnerability in the Welcart e-Commerce WordPress plugin before version 2.11.33 allows unauthenticated attackers to mark unpaid orders as settled without payment. The plugin fails to verify the authenticity of settlement callbacks, enabling attackers to change an order's status using only an order number and status flag, bypassing payment checks for methods like convenience store payments or bank transfers.

Useful 0 Not Useful 0

Detection Guidance

Check if the Welcart e-Commerce plugin version is below 2.11.33. Inspect server logs for suspicious order status changes without corresponding payments. Look for unauthenticated POST requests to callback endpoints with order status modifications.

Useful 0 Not Useful 0

Impact Analysis

If you use the vulnerable plugin version, attackers could exploit this to obtain products or services without paying by falsifying order statuses. This could lead to financial losses for your business and undermine trust in your payment processes.

Useful 0 Not Useful 0

Compliance Impact

This vulnerability could lead to non-compliance with financial and data protection regulations. For GDPR, unauthorized access to order processing may violate data integrity and security principles. For HIPAA, if the plugin handles protected health information in payment processing, the lack of authentication could risk unauthorized access to sensitive data.

Useful 0 Not Useful 0

Mitigation Strategies

Update the Welcart e-Commerce plugin to version 2.11.33 or later immediately. Review recent orders for unauthorized status changes. Implement additional authentication for order status callbacks if possible.

Useful 0 Not Useful 0