CVE-2023-51312
📋 TL;DR
PHPJabbers Restaurant Booking System v3.0 contains a reflected cross-site scripting vulnerability in the Schedule section's date parameter. Attackers can inject malicious scripts that execute in victims' browsers when they click specially crafted links. This affects all users of the vulnerable version who access the Reservations menu.
💻 Affected Systems
- PHPJabbers Restaurant Booking System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, perform actions as authenticated users, redirect to malicious sites, or deface the application interface.
Likely Case
Attackers would typically use this to steal session cookies or credentials from authenticated users, potentially leading to account compromise.
If Mitigated
With proper input validation and output encoding, the malicious scripts would be rendered harmless as text rather than executed code.
🎯 Exploit Status
Exploitation requires user interaction (clicking malicious link) but is technically simple with public proof-of-concept available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Check vendor website for updates. 2. If patch available, download and install. 3. Test functionality after update.
🔧 Temporary Workarounds
Input Validation Filter
allAdd server-side validation to sanitize date parameter input
Modify PHP code to validate date format and sanitize input before processing
Output Encoding
allImplement proper output encoding for all user-controlled data
Use htmlspecialchars() or similar functions when outputting user data
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Restrict access to vulnerable interface to trusted users only
🔍 How to Verify
Check if Vulnerable:
Test by injecting basic XSS payload into date parameter: ?date=<script>alert('XSS')</script>Check Version:
Check system version in admin panel or readme filesVerify Fix Applied:
Test same payload after fix - should display as encoded text rather than executing script📡 Detection & Monitoring
Log Indicators:
- HTTP requests containing script tags or JavaScript in date parameter
- Unusual length or format in date parameter values
Network Indicators:
- Malicious URLs containing script payloads being accessed
SIEM Query:
web.url:*date=*script* OR web.url:*date=*javascript*