Software: Tested on Comersus Cart 5.09 Previous versions may also be affected.
Remote: Remotely executed from any web browser
Technical Details: The unethical user is able to modify the parameters to change the pricing before the order is processed through PayPal. This would allow the unethical user to place a fraudulent transaction which many times isn't caught until the product is already shipped OR the shopping cart owner is charged a chargeback fee when refunding the order.
Vendor Fix: Update to 5.098 http://www.comersus.com/ Use <form method="POST" on all Forms Also recommend using SSL for ALL Transactional areas of the website. Review all orders before processing
Credit: Discovered By: Thomas Ryan Provide Security