CVE-2025-54157
📋 TL;DR
A reflected cross-site scripting vulnerability in MedDream PACS Premium allows attackers to execute arbitrary JavaScript code by tricking users into clicking a malicious URL. This affects healthcare organizations using MedDream PACS Premium 7.3.6.870 for medical imaging. Attackers can steal session cookies, redirect users, or perform actions on their behalf.
💻 Affected Systems
- MedDream PACS Premium
📦 What is this software?
Pacs Server by Meddream
⚠️ Risk & Real-World Impact
Worst Case
Attacker steals administrator session cookies, gains full system access, exfiltrates patient medical data, and modifies medical images/diagnoses.
Likely Case
Attacker steals user session cookies to access patient data, redirects users to phishing sites, or performs limited actions within the application.
If Mitigated
Attack limited to stealing non-sensitive session data if proper input validation and output encoding are implemented.
🎯 Exploit Status
Reflected XSS vulnerabilities are commonly weaponized. Exploitation requires user interaction (clicking malicious link).
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Contact MedDream vendor for patch availability
2. Apply patch when available
3. Test in non-production environment first
4. Deploy to production systems
🔧 Temporary Workarounds
Web Application Firewall (WAF)
allDeploy WAF with XSS protection rules to block malicious requests
Input Validation
allImplement strict input validation on encapsulatedDoc parameter
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution
- Deploy reverse proxy with request filtering for encapsulatedDoc parameter
🔍 How to Verify
Check if Vulnerable:
Test encapsulatedDoc parameter with XSS payloads: <script>alert('XSS')</script>Check Version:
Check MedDream PACS Premium version in administration interface or configuration filesVerify Fix Applied:
Verify input validation sanitizes encapsulatedDoc parameter and output is properly encoded📡 Detection & Monitoring
Log Indicators:
- HTTP requests containing script tags in encapsulatedDoc parameter
- Unusual URL patterns with JavaScript code
Network Indicators:
- Malicious URLs containing script payloads
- Requests to encapsulatedDoc endpoint with suspicious parameters
SIEM Query:
source="web_logs" AND (uri="*encapsulatedDoc*" AND (param="*<script>*" OR param="*javascript:*"))