Concrete CMS 9.2.7 Cross Site Scripting / Open Redirect Vulnerabilities

# Exploit Title: Multiple Web Flaws in concretecmsv9.2.7
# Exploit Author: Andrey Stoykov
# Version: 9.2.7
# Tested on: Ubuntu 22.04
# Blog: http://msecureltd.blogspot.com


Verbose Error Message - Stack Trace:

1. Directly browse to edit profile page
2. Error should come up with verbose stack trace

Verbose Error Message - SQL Error:

1. Page Settings > Design > Save Changes
2. Intercept HTTP POST request and place single quote to "pTemplateID"
3. Verbose SQL error message would occur

Open Redirect:

1. Login to application
2. Click to "Edit This Page" button
3. Intercept HTTP GET request
4. Enter relevant domain as value for "redirect" parameter

Stored XSS:

1. Edit page
2. Add HTML and drag it to the page
3. Add XSS payload

"><iframe src="data:text/html;base64,PHNjcmlwdD5hbGVydCgxKTwvc2NyaXB0Pg==">