CVE-2023-51311
📋 TL;DR
CVE-2023-51311 is a CSV injection vulnerability in PHPJabbers Car Park Booking System v3.0 that allows attackers to execute remote code by exploiting insufficient input validation in the Languages section Labels parameters. This affects organizations using the vulnerable version of this parking management software, potentially compromising their systems.
💻 Affected Systems
- PHPJabbers Car Park Booking System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with remote code execution leading to data theft, ransomware deployment, or complete system takeover.
Likely Case
Data exfiltration, privilege escalation, or installation of backdoors for persistent access.
If Mitigated
Limited impact with proper input validation and output encoding preventing successful exploitation.
🎯 Exploit Status
Exploitation requires authenticated access to the vulnerable interface and knowledge of CSV injection techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 3.1 or later
Vendor Advisory: https://www.phpjabbers.com/
Restart Required: No
Instructions:
1. Download latest version from PHPJabbers website. 2. Backup current installation. 3. Replace vulnerable files with patched version. 4. Test functionality.
🔧 Temporary Workarounds
Input Validation Enhancement
allImplement strict input validation for CSV export functionality to sanitize user-controlled data.
🧯 If You Can't Patch
- Restrict access to System Options interface to trusted administrators only
- Implement web application firewall rules to detect and block CSV injection attempts
🔍 How to Verify
Check if Vulnerable:
Check if using PHPJabbers Car Park Booking System version 3.0 by reviewing admin panel or source code.Check Version:
Check admin dashboard or review application files for version information.Verify Fix Applied:
Verify version is 3.1 or later in admin panel and test CSV export functionality with malicious input.📡 Detection & Monitoring
Log Indicators:
- Unusual CSV export requests
- Malicious payloads in system logs
- Unexpected file generation
Network Indicators:
- Suspicious file downloads from admin interface
- Unexpected outbound connections after CSV operations
SIEM Query:
source="web_logs" AND (uri="/admin/*" AND (method="POST" OR method="GET") AND (query="csv" OR query="export"))