An undocumented extension for the Servlet mappings in the Servlet 2.3 specification, when upgrading to WebLogic Server and Express 7.0 Service Pack 1 from BEA WebLogic Server and Express 6.0 through 7.0.0.1, does not prepend a "/" character in certain URL patterns, which prevents the proper enforcement of role mappings and policies in applications that use the extension.
BEA WebLogic Server and Express 6.1 through 7.0.0.1 buffers HTTP requests in a way that can cause BEA to send the same response for two different HTTP requests, which could allow remote attackers to obtain sensitive information that was intended for other users.
The default configuration of BEA WebLogic 3.1.8 through 4.5.1 allows a remote attacker to view source code of a JSP program by requesting a URL which provides the JSP extension in upper case.