CVE-2026-0643
📋 TL;DR
This vulnerability allows remote attackers to upload arbitrary files through the signup component in House Rental and Property Listing 1.0. Attackers can exploit this to upload malicious files like web shells, potentially gaining unauthorized access to the system. Any organization using this software version is affected.
💻 Affected Systems
- House Rental and Property Listing
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise via remote code execution, data theft, and persistent backdoor installation
Likely Case
Unauthorized file upload leading to web shell deployment and limited system access
If Mitigated
File upload blocked or properly validated, preventing exploitation
🎯 Exploit Status
Exploit published on GitHub, remote exploitation possible without authentication
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None found
Restart Required: No
Instructions:
No official patch available. Consider workarounds or alternative software.
🔧 Temporary Workarounds
File Upload Restriction
allImplement server-side file type validation and restrict uploads to specific extensions
Web Application Firewall Rule
allBlock requests to /app/register.php with image parameter containing suspicious content
🧯 If You Can't Patch
- Disable the signup functionality entirely if not needed
- Implement network segmentation to isolate the application from critical systems
🔍 How to Verify
Check if Vulnerable:
Attempt to upload a file with malicious extension to /app/register.php?action=reg with image parameterCheck Version:
Check software documentation or configuration files for version informationVerify Fix Applied:
Test that file uploads are properly validated and restricted to allowed types only📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to /app/register.php
- Files with suspicious extensions in upload directories
Network Indicators:
- HTTP POST requests to /app/register.php with file uploads
- Subsequent connections to uploaded files
SIEM Query:
source="web_server" AND uri="/app/register.php" AND method="POST" AND (file_upload="true" OR contains(param,"image"))