Security Advisory

CVE-2025-3889

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-05-01 11:11:41

Last updated 2026-04-08 16:48:35

Assigner Wordfence

State PUBLISHED

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.

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