BEA WebLogic Server and WebLogic Express 8.1 SP4 and earlier and 7.0 SP6 and earlier, when using the weblogic.Deployer command with the t3 protocol, does not use the secure t3s protocol even when an Administration port is enabled on the Administration server, which might allow remote attackers to sniff the connection.

Multiple cross-site scripting (XSS) vulnerabilities in BEA WebLogic Server and Express 8.1 through Service Pack 4, and 7.0 through Service Pack 6, allow remote attackers to inject arbitrary web script or HTML, and possibly gain administrative privileges, via the (1) j_username or (2) j_password parameters in the login page (LoginForm.jsp), (3) parameters to the error page in the Administration Console, (4) unknown vectors in the Server Console while the administrator has an active session to obtain the ADMINCONSOLESESSION cookie, or (5) an alternate vector in the Server Console that does not require an active session but also leaks the username and password.

The cluster cookie parsing code in BEA WebLogic Server 7.0 through Service Pack 5 attempts to contact any host or port specified in a cookie, even when it is not in the cluster, which allows remote attackers to cause a denial of service (cluster slowdown) via modified cookies.

Buffer overflow in BEA WebLogic Server and WebLogic Express 6.1 Service Pack 4 allows remote attackers to cause a denial of service (CPU consumption from thread looping).

BEA WebLogic Server and WebLogic Express 8.1 SP2 and SP3 allows users with the Monitor security role to "shrink or reset JDBC connection pools."

The UserLogin control in BEA WebLogic Portal 8.1 through Service Pack 3 prints the password to standard output when an incorrect login attempt is made, which could make it easier for attackers to guess the correct password.

The embedded LDAP server in BEA WebLogic Server and Express 8.1 through Service Pack 4, and 7.0 through Service Pack 5, allows remote anonymous binds, which may allow remote attackers to view user entries or cause a denial of service.

BEA WebLogic Server and WebLogic Express 8.1 through Service Pack 3 and 7.0 through Service Pack 5 does not properly handle when a security provider throws an exception, which may cause WebLogic to use incorrect identity for the thread, or to fail to audit security exceptions.

BEA WebLogic Server 7.0 Service Pack 5 and earlier, and 8.1 Service Pack 3 and earlier, generates different login exceptions that suggest why an authentication attempt fails, which makes it easier for remote attackers to guess passwords via brute force attacks.

The default configuration of BEA WebLogic Server and Express 8.1 SP2 and earlier, 7.0 SP4 and earlier, 6.1 through SP6, and 5.1 through SP13 responds to the HTTP TRACE request, which can allow remote attackers to steal information using cross-site tracing (XST) attacks in applications that are vulnerable to cross-site scripting.