Directory traversal vulnerability in the user_get_profile function in include/functions.inc.php in Coppermine Photo Gallery (CPG) 1.4.18 and earlier, when the charset is utf-8, allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the lang part of serialized data in an _data cookie.

More... (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-3486)