The route lookup process in beego before 1.12.9 and 2.x before 2.0.3 allows attackers to bypass access control. When a /p1/p2/:name route is configured, attackers can access it by appending .xml in various places (e.g., p1.xml instead of p1).
Cross Site Scripting (XSS) vulnerability exists in the admin panel in Beego v2.0.1 via the URI path in an HTTP request, which is activated by administrators viewing the "Request Statistics" page.
The File Session Manager in Beego 1.10.0 allows local users to read session files because there is a race condition involving file creation within a directory with weak permissions.