BEA WebLogic Server and Express 7.0 and 7.0.0.1, when using "memory" session persistence for web applications, does not clear authentication information when a web application is redeployed, which could allow users of that application to gain access without having to re-authenticate.
https://exchange.xforce.ibmcloud.com/vulnerabilities/11555
http://www.securityfocus.com/bid/7130
http://www.kb.cert.org/vuls/id/691153
http://dev2dev.bea.com/resourcelibrary/advisoriesnotifications/BEA03-27.jsp