CVE-2019-7864: Magento 2 Community Edition IDOR Vulnerability

The vulnerability description explicitly mentions IDOR in RSS feeds leading to order detail exposure. Magento's RSS order feed functionality is typically handled by the Order/Index controller. The execute() method would process the request parameters (including order ID) and fetch order data. Without proper authorization checks validating user ownership of the requested order ID, this creates an IDOR vulnerability. The CWE-639 classification confirms this is an authorization bypass through user-controlled keys (order IDs in this case). While exact patch details aren't available, historical Magento security practices show these vulnerabilities are often fixed by adding customer session validation in controller actions handling sensitive data retrieval.