CVE-2023-51325
📋 TL;DR
PHPJabbers Shared Asset Booking System v1.0 contains stored cross-site scripting vulnerabilities in the 'title' and 'name' parameters. This allows attackers to inject malicious scripts that execute in users' browsers when viewing affected pages. Organizations using this specific version of the booking system are affected.
💻 Affected Systems
- PHPJabbers Shared Asset Booking System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, redirect users to malicious sites, perform actions on behalf of authenticated users, or deploy malware through the booking system interface.
Likely Case
Attackers inject malicious scripts that steal user session cookies or credentials, potentially leading to account compromise and unauthorized access to the booking system.
If Mitigated
With proper input validation and output encoding, the scripts would be rendered harmless as text rather than executable code.
🎯 Exploit Status
Exploitation requires authentication to access the vulnerable parameters. Public proof-of-concept demonstrates the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Consider upgrading to a newer version if available or implementing workarounds.
🔧 Temporary Workarounds
Input Validation and Output Encoding
allImplement proper input validation for title and name parameters, and encode all user-controlled output before rendering in HTML.
Content Security Policy
allImplement a strict Content Security Policy header to prevent execution of inline scripts and restrict script sources.
Header set Content-Security-Policy "default-src 'self'; script-src 'self'" in Apache .htaccess or equivalent
🧯 If You Can't Patch
- Implement web application firewall rules to block XSS payloads in title and name parameters
- Disable or restrict access to the booking system until a fix can be implemented
🔍 How to Verify
Check if Vulnerable:
Test by submitting script payloads in title and name fields and checking if they execute when viewing the page.Check Version:
Check the software version in the admin panel or configuration files.Verify Fix Applied:
Test with XSS payloads to confirm they are properly sanitized and do not execute.📡 Detection & Monitoring
Log Indicators:
- Unusual script-like content in title/name parameters
- Multiple failed login attempts followed by parameter manipulation
Network Indicators:
- HTTP requests containing script tags or JavaScript in title/name parameters
SIEM Query:
web_requests WHERE (parameter_name CONTAINS 'title' OR parameter_name CONTAINS 'name') AND parameter_value MATCHES '<script|javascript:|onload=|onerror='