Employee Record System 1.0 - Multiple Stored XSS

# Exploit Title: Employee Record System 1.0 - Multiple Stored XSS
# Exploit Author: Saeed Bala Ahmed (r0b0tG4nG)
# Date: 2020-12-09
# Google Dork: N/A
# Vendor Homepage: https://www.sourcecodester.com/php/14588/employee-record-system-phpmysqli-full-source-code.html
# Software Link: https://www.sourcecodester.com/download-code?nid=14588&title=Employee+Record+System+in+PHP%2FMySQLi+with+Full+Source+Code
# Affected Version: Version 1
# Patched Version: Unpatched
# Category: Web Application
# Tested on: Parrot OS

Step 1: Log in to the application with any valid user credentials.

Step 2: Click on Add Employee.

Step 3: input "<script>alert(1)</script>" in all fields except phone number
fields. Note: increase the values of "1" in "alert(1)" to determine which
field is vulnerable. Eg <script>alert(2)</script>,
<script>alert(3)</script> ....etc.

Step 4: Once all fields are completed, Click on ADD RECORD to save the
record.

Step 5: Click on All Employees page and this will trigger the Stored XSS.

Step 6: To view all Stored XSS, after clicking on All Employees page, click
on the View Employee Icon. This will tigger all Stored XSS payloads.