IBM WebSphere Portal 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 132117.
https://exchange.xforce.ibmcloud.com/vulnerabilities/132117
http://www.securitytracker.com/id/1039405