CVE-2025-53707
📋 TL;DR
A reflected cross-site scripting vulnerability in MedDream PACS Premium allows attackers to execute arbitrary JavaScript code by tricking users into clicking malicious URLs. This affects healthcare organizations using MedDream PACS Premium 7.3.6.870 for medical imaging management. 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 sensitive patient medical data, and potentially modifies medical records or imaging studies.
Likely Case
Attacker steals user session cookies to access patient data, performs phishing attacks from within the application, or redirects users to malicious sites.
If Mitigated
With proper input validation and output encoding, the vulnerability is eliminated; with web application firewalls, malicious payloads are blocked before reaching the application.
🎯 Exploit Status
Exploitation requires user interaction (clicking malicious link) but no authentication. Attack vectors include phishing emails or malicious links on websites.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2267
Restart Required: No
Instructions:
1. Monitor MedDream vendor for security updates. 2. Apply vendor-provided patch when available. 3. Test patch 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 payloads before reaching the application.
Input Validation Filter
allImplement server-side input validation to sanitize user input in modifyTranscript parameters.
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution sources.
- Educate users about phishing risks and implement URL filtering to block malicious domains.
🔍 How to Verify
Check if Vulnerable:
Test the modifyTranscript endpoint with XSS payloads like <script>alert('XSS')</script> in URL parameters and check if script executes.Check Version:
Check MedDream PACS Premium version in application interface or configuration files.Verify Fix Applied:
After applying fixes, retest with XSS payloads to confirm scripts no longer execute and input is properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual URL parameters containing script tags or JavaScript code in modifyTranscript requests
- Multiple failed XSS attempts from same IP
Network Indicators:
- HTTP requests with suspicious parameters containing <script>, javascript:, or encoded payloads
SIEM Query:
source="web_logs" AND uri="*modifyTranscript*" AND (param="*<script>*" OR param="*javascript:*")