WordPress Simple Shopping Cart, CVE-2025-3889

CVE, Research URL: CVE-2025-3889
Home page URL: Security reports for WordPress Simple Shopping Cart
Application: WordPress Simple Shopping Cart
Published on: May 01, 2025
Research Description: The WordPress Simple Shopping Cart plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.1.3 via the 'process_payment_data' due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to change the quantity of a product to a negative number, which subtracts the product cost from the total order cost. The attack will only work with Manual Checkout mode, as PayPal and Stripe will not process payments for a negative quantity.
Affected versions: Min -, max 5.1.4.
Status: vulnerable