CVE-2026-16990 Payment Button for PayPal <= 1.2.3.44 - Unauthenticated Payment Price Manipulation

The Payment Button for PayPal WordPress plugin through 1.2.3.44 does not enforce the merchant-configured price server-side and trusts a client-supplied payment amount, allowing unauthenticated attackers to create a real PayPal order against the merchant for an arbitrary lower amount...