CVE-2025-11119
📋 TL;DR
A cross-site scripting (XSS) vulnerability exists in itsourcecode Hostel Management System 1.0, specifically in the /justines/index.php POST request handler. Attackers can inject malicious scripts via the 'from' parameter, which could lead to session hijacking, credential theft, or defacement when users visit the vulnerable page. This affects all deployments of Hostel Management System 1.0 that are exposed to untrusted users.
💻 Affected Systems
- itsourcecode Hostel Management System
📦 What is this software?
Hostel Management System by Angeljudesuarez
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, hijack user sessions, redirect users to malicious sites, or deface the application, potentially leading to complete system compromise if admin accounts are hijacked.
Likely Case
Attackers will inject malicious scripts to steal user session cookies or credentials, potentially gaining unauthorized access to the hostel management system.
If Mitigated
With proper input validation and output encoding, the XSS payloads would be neutralized, preventing script execution while maintaining application functionality.
🎯 Exploit Status
The exploit is publicly available and can be executed remotely without authentication. Attack complexity is low as it only requires crafting a malicious POST request.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: UNKNOWN
Vendor Advisory: https://itsourcecode.com/
Restart Required: No
Instructions:
1. Check vendor website for security updates. 2. If no patch is available, implement input validation and output encoding in /justines/index.php. 3. Sanitize the 'from' parameter before processing.
🔧 Temporary Workarounds
Implement Input Validation
PHPAdd server-side validation to sanitize the 'from' parameter in POST requests to /justines/index.php
// PHP example: $from = htmlspecialchars($_POST['from'], ENT_QUOTES, 'UTF-8');
Web Application Firewall (WAF)
allDeploy a WAF with XSS protection rules to filter malicious payloads before they reach the application
🧯 If You Can't Patch
- Isolate the vulnerable system behind a reverse proxy with XSS filtering capabilities
- Implement Content Security Policy (CSP) headers to restrict script execution sources
🔍 How to Verify
Check if Vulnerable:
Test by sending a POST request to /justines/index.php with a XSS payload in the 'from' parameter (e.g., <script>alert('XSS')</script>) and check if script executes in browserCheck Version:
Check the application's version information in admin panel or readme filesVerify Fix Applied:
After implementing fixes, repeat the XSS test to confirm payloads are properly sanitized and do not execute📡 Detection & Monitoring
Log Indicators:
- POST requests to /justines/index.php containing script tags or JavaScript in 'from' parameter
- Unusual length or character patterns in 'from' parameter values
Network Indicators:
- HTTP POST requests with suspicious payloads in body parameters
- Multiple failed XSS attempts from same source IP
SIEM Query:
source="web_logs" AND uri_path="/justines/index.php" AND http_method="POST" AND (body CONTAINS "<script>" OR body CONTAINS "javascript:")