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Vulnerabilities and Security Researches

WordPress Simple Shopping Cart, CVE-2025-3889

CVE, Research URL

CVE-2025-3889

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