CVE-2025-63949
📋 TL;DR
A reflected cross-site scripting vulnerability in the yohanawi Hotel Management System allows attackers to inject malicious scripts via the 'error' parameter in room.php. This affects all users of the vulnerable version who access the system through a web browser. Attackers can steal session cookies, redirect users, or perform actions on their behalf.
💻 Affected Systems
- yohanawi Hotel Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attacker steals administrator session cookies, gains full system control, accesses sensitive guest data, and potentially compromises the entire hotel management infrastructure.
Likely Case
Attacker steals user session cookies to impersonate legitimate users, accesses limited guest information, or redirects users to phishing sites.
If Mitigated
Script execution is blocked by modern browser XSS protections, limiting impact to basic page defacement or minimal data exposure.
🎯 Exploit Status
Exploitation requires tricking users into clicking malicious links. No authentication needed to trigger the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Review the GitHub advisory for technical details
2. Manually sanitize the 'error' parameter in pages/room.php
3. Implement proper input validation and output encoding
4. Test the fix thoroughly before deployment
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rule
allBlock requests containing malicious script patterns in the error parameter
WAF-specific configuration required
Content Security Policy (CSP)
allImplement strict CSP headers to prevent script execution from untrusted sources
Content-Security-Policy: default-src 'self'; script-src 'self'
🧯 If You Can't Patch
- Restrict access to the hotel management system using network segmentation and firewall rules
- Implement strong session management with short timeouts and secure cookie attributes (HttpOnly, Secure)
🔍 How to Verify
Check if Vulnerable:
Test by accessing: http://[target]/pages/room.php?error=<script>alert('XSS')</script> and checking for script executionCheck Version:
Check the Git commit hash or version file if availableVerify Fix Applied:
Repeat the test with the same payload and verify no script execution occurs📡 Detection & Monitoring
Log Indicators:
- HTTP requests to room.php with script tags or JavaScript in error parameter
- Unusual error parameter values containing <, >, or script patterns
Network Indicators:
- HTTP GET requests with JavaScript payloads in query parameters
- Multiple failed XSS attempts from single IP addresses
SIEM Query:
source="web_logs" AND uri="/pages/room.php" AND query="*error=*script*"