CVE-2026-12432 Stripe Payment Forms by WP Full Pay <= 8.4.3 - Missing Authorization to Unauthenticated Payment Record Manipulation via 'paymentIntentId' Parameter

The WP Full Stripe Free plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 8.4.3 via the wpfsupdatefailedpaymentstatus AJAX action. The handler is registered through both wpajax and wpajaxnopriv hooks and the underlying updatefailedpaymentstatus function...