Executive Summary

This vulnerability is a stored cross-site scripting (XSS) issue in the Cyber Cafe Management System v1.0. An authenticated attacker can inject malicious JavaScript code into the username parameter through the add-users.php endpoint. This injected code is stored on the server and later executed in the browser of any user who accesses the affected page, potentially compromising their session or data. [2]

Useful 0 Not Useful 0

Impact Analysis

The vulnerability can allow attackers to execute arbitrary JavaScript in the context of other users' browsers. This can lead to theft of session cookies, defacement of the web interface, redirection to malicious sites, or other malicious actions that compromise user data and system integrity. [2]

Useful 0 Not Useful 0

Detection Guidance

To detect this stored XSS vulnerability, you can test the add-users.php endpoint by injecting JavaScript payloads into the username parameter and observing if the payload is stored and executed when accessing the affected page. For example, use curl or a similar tool to send a POST request with a payload like <script>alert(1)</script> in the username field. Example command: curl -X POST -d "username=<script>alert(1)</script>&other_params=values" http://yourserver/ccms/add-users.php Then, access the user listing or relevant page in a browser to see if the alert executes. This manual testing approach helps confirm the vulnerability presence. [1]

Useful 0 Not Useful 0

Mitigation Strategies

Immediate mitigation steps include sanitizing and validating all user inputs on the server side, especially the username parameter in add-users.php, to prevent injection of malicious scripts. Implement output encoding when displaying user-supplied data to avoid execution of injected scripts. Additionally, restrict user privileges to limit who can add users, and consider applying web application firewalls (WAF) rules to detect and block XSS payloads. Updating the application code to properly handle input and output is essential for a permanent fix. [1]

Useful 0 Not Useful 0