The PORTAL schema in Oracle Application Server (OracleAS) Discussion Forum Portlet allows remote attackers to obtain the source code for arbitrary JSP and other files via a df_next_page parameter with a trailing null byte (%00).
https://exchange.xforce.ibmcloud.com/vulnerabilities/23813
http://www.vupen.com/english/advisories/2005/3085
http://securitytracker.com/id?1015406