Directory traversal vulnerability in unb_lib/abbc.conf.php in Unclassified NewsBoard (UNB) 1.6.1 patch 1 and earlier, when register_globals is enabled, allows remote attackers to include arbitrary files via .. (dot dot) sequences and a trailing null byte (%00) in the ABBC[Config][smileset] parameter to unb_lib/abbc.css.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/26507
http://www.vupen.com/english/advisories/2006/1782
http://www.securityfocus.com/archive/1/433686/100/0/threaded