BEA WebLogic Portal 9.2 does not properly handle when an administrator deletes entitlements for a role, which causes other role entitlements to be "inadvertently affected," which has an unknown impact.
http://www.vupen.com/english/advisories/2007/0213
http://www.securityfocus.com/bid/22082
http://securitytracker.com/id?1017521