Directory traversal vulnerability in randompic.php in pppBLOG 0.3.8 and earlier, when register_globals is enabled, allows remote attackers to read arbitrary files via a .. (dot dot) sequence in an index of the "file" array parameter, as demonstrated by file[0].
https://exchange.xforce.ibmcloud.com/vulnerabilities/26969
http://www.vupen.com/english/advisories/2006/2085
http://www.securityfocus.com/archive/1/435406/100/0/threaded
http://securitytracker.com/id?1016198