# Exploit Title: Composr CMS 10.0.34 - 'banners' Persistent Cross Site Scripting # Date: 3-12-2020 # Exploit Author: Parshwa Bhavsar # Vendor Homepage: https://compo.sr/ # Software Link: https://compo.sr/download.htm # Version: 10.0.34 # Tested on: Windows 10/ Kali Linux Steps To Reproduce :- 1. Install the CMS from the download link & configure it. 2. After configuration login with admin Credential . 3. You will notice “Add banner” in the top of the browser. 4. Click on it and Put XSS payload (any) in “Description” field. 5. Save it & Click on Home. 6. Every time any user visit the website , the XSS payload will trigger.