Multiple PHP remote file inclusion vulnerabilities in Phorum 5.1.14, when register_globals is enabled, allow remote attackers to execute arbitrary PHP code via unspecified vectors related to an uninitialized variable.
http://www.vupen.com/english/advisories/2006/2794
http://www.phorum.org/phorum5/read.php?14%2C114358
http://secunia.com/advisories/21043
http://retrogod.altervista.org/phorum5_local_incl_xpl.html
http://archives.neohapsis.com/archives/bugtraq/2006-07/0200.html
http://archives.neohapsis.com/archives/bugtraq/2006-07/0191.html