# Exploit Title: Kentico CMS version 9 through 11 - Cross-Site Scripting
# Date: 18-02-2018
# Software Link: https://www.kentico.com
# Exploit Author: Keerati T.
# CVE: CVE-2018-7205
# Category: webapps
Kentico is the only fully integrated ASP.NET CMS, E-commerce, and Online
Marketing platform that allows you to create cutting-edge websites and optimize
your digital customers experiences fully across multiple channels. Kentico
saves you time and resources so you can accomplish more. (Copy from Kentico
2. Proof of Concept
In case of no product to install you can request Hosted Trial at
https://www.kentico.com/download-demo/hosted-trial (Vendor message: Hosted
trials are virtual applications running isolated and are limited by application
pool permission set on server level so they should be safe as well.)
2.1 Log in as administrator.
2.2 Go to "Pages".
2.3 At "Edit" on left panel, select any page under site.
2.4 Click "Template" tab locate on top right panel.
2.5 Under "Template" tab, select "Edit template properties".
2.6 Select "Device layout".
2.7 Select "Create device layout".
2.8 At popped "New device layout" select device on drop-down list and save.
2.9 Edit created device layout, select "Design".
2.10 Inject ')};alert('xss');// into "devicename" parameter.
3.1 Discovery and report - 15 Feb 2018.
3.2 CVE ID was assigned - 18 Feb 2018.
3.3 Public - 18 Feb 2018.
Implementing HTML encode function.