Authored by Tushar Vaidya

Textpattern CMS version 4.9.0-dev suffers from a persistent cross site scripting vulnerability.

# Exploit Title:  Textpattern CMS 4.9.0-dev - 'Excerpt' Persistent Cross-Site Scripting (XSS)
# Date: 2021-03-04
# Exploit Author: Tushar Vaidya
# Vendor Homepage:
# Software Link:
# Version: v 4.9.0-dev
# Tested on: Windows

1. Login into Textpattern CMS admin panel.
2. Now go to the *Content > Write > ** Excerpt*.
3. Now paste the below payload in the URL field.

Ba1man”><img src=x onerror=confirm(document.cookie)>

4. Now click on the *Save* button.
5. Now go to the *articles* page
5. The XSS will be triggered.