Claudio Sanches – Checkout Cielo for WooCommerce <= 1.1.0 - Insufficient Verification of Data Authenticity to Order Payment Status Update

The Claudio Sanches – Checkout Cielo for WooCommerce plugin for WordPress is vulnerable to unauthorized modification of data due to insufficient payment validation in the update_order_status() function in all versions up to, and including, 1.1.0. This makes it possible for unauthenticated attackers to update the status of orders to paid bypassing payment.