CVE-2025-55618
📋 TL;DR
This CVE describes a cross-site scripting (XSS) vulnerability in the Hyundai Navigation App where an attacker can inject HTML payloads into the profile name field, which then get rendered by the application. This affects users of the Hyundai Navigation App STD5W.EUR.HMC.230516.afa908d version. The vulnerability allows attackers to execute arbitrary scripts in the context of the navigation app.
💻 Affected Systems
- Hyundai Navigation App
📦 What is this software?
Navigation by Hyundai
⚠️ Risk & Real-World Impact
Worst Case
An attacker could execute malicious JavaScript that steals sensitive navigation data, manipulates navigation routes, or performs actions on behalf of the user within the app context.
Likely Case
Attackers could inject malicious scripts that display fake alerts, redirect users to malicious sites, or steal session tokens and personal information.
If Mitigated
With proper input validation and output encoding, the HTML payloads would be treated as plain text rather than executable code, preventing script execution.
🎯 Exploit Status
The GitHub repository contains proof-of-concept code demonstrating the vulnerability. Exploitation requires access to modify profile names, which typically requires some level of app access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: http://hyundai.com
Restart Required: No
Instructions:
1. Check Hyundai's official website for security updates
2. Update navigation system firmware if available
3. Apply any available app updates through the vehicle's infotainment system
🔧 Temporary Workarounds
Avoid custom profile names
allDo not enter custom HTML or suspicious content in profile name fields
Disable profile editing
allIf possible, restrict profile creation/modification to trusted users only
🧯 If You Can't Patch
- Implement network segmentation to isolate the navigation system from other critical systems
- Monitor for unusual profile name entries containing HTML/JavaScript patterns
🔍 How to Verify
Check if Vulnerable:
Check if your Hyundai navigation system is running version STD5W.EUR.HMC.230516.afa908d in the system settingsCheck Version:
Navigate to Settings > System Information in the Hyundai navigation appVerify Fix Applied:
Verify the version has been updated to a newer release than STD5W.EUR.HMC.230516.afa908d📡 Detection & Monitoring
Log Indicators:
- Unusual profile name entries containing HTML tags or JavaScript code
- Multiple rapid profile modifications
Network Indicators:
- Unexpected outbound connections from the navigation system
- DNS requests to suspicious domains
SIEM Query:
source="hyundai_nav" AND (event="profile_update" AND name CONTAINS "<script>" OR name CONTAINS "javascript:")