CVE-2025-13544
📋 TL;DR
This CVE describes an unrestricted file upload vulnerability in ashraf-kabir travel-agency software affecting the /customer_register.php endpoint. Attackers can remotely upload malicious files without authentication, potentially leading to server compromise. All deployments using affected versions are vulnerable.
💻 Affected Systems
- ashraf-kabir travel-agency
📦 What is this software?
Travel Agency by Ashraf Kabir
⚠️ Risk & Real-World Impact
Worst Case
Complete server takeover via webshell upload leading to data exfiltration, ransomware deployment, or lateral movement within the network.
Likely Case
Webshell upload allowing persistent backdoor access, data theft, or use as attack proxy.
If Mitigated
File upload attempts logged and blocked with proper file validation and server hardening.
🎯 Exploit Status
Exploit documentation available in public GitHub repository; simple file upload manipulation required.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown - vendor unresponsive
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider migrating to alternative software or implementing strict workarounds.
🔧 Temporary Workarounds
File Upload Restriction
allImplement strict file type validation and size limits on /customer_register.php endpoint
# Add to PHP configuration or application code
# Validate file extensions, MIME types, and content
# Example: allow only .jpg, .png, .pdf with size < 2MB
Web Application Firewall Rules
allBlock suspicious file upload patterns to /customer_register.php
# WAF rule example for ModSecurity
SecRule REQUEST_FILENAME "@endsWith /customer_register.php" \
"id:1001,phase:2,deny,status:403,msg:'Blocked file upload attempt'" \
"chain"
SecRule REQUEST_METHOD "@streq POST" \
"chain"
SecRule FILES "@rx \.(php|asp|jsp|exe|sh)$" "t:lowercase"
🧯 If You Can't Patch
- Disable /customer_register.php endpoint completely if not required
- Implement network segmentation to isolate travel-agency server from critical assets
🔍 How to Verify
Check if Vulnerable:
Attempt to upload a test file with .php extension to /customer_register.php endpoint; if accepted, system is vulnerable.Check Version:
Check git commit hash: git log --oneline -1Verify Fix Applied:
Test file upload with restricted extensions; verify only allowed file types are accepted and malicious files are rejected.📡 Detection & Monitoring
Log Indicators:
- Unusual file uploads to /customer_register.php
- POST requests with executable file extensions
- Large number of failed upload attempts
Network Indicators:
- HTTP POST requests to /customer_register.php with file uploads
- Unusual outbound connections from web server
SIEM Query:
source="web_logs" AND uri="/customer_register.php" AND method="POST" AND (file_extension="php" OR file_extension="exe" OR file_extension="sh")