Incorrect access control in the /member/orderList API of xmall v1.1 allows attackers to arbitrarily access other users' order details via manipulation of the query parameter userId.
Multiple Cross-Site Scripting (XSS) vulnerabilities exist in xmall v1.1 due to improper handling of user-supplied data. User input fields such as username and description are directly rendered into HTML without proper sanitization or encoding, allowing attackers to inject and execute malicious scripts.