CVE-2025-57787
📋 TL;DR
A reflected cross-site scripting (XSS) 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 sensitive patient data (PHI), and potentially modifies medical images or reports.
Likely Case
Attacker steals user session cookies to impersonate legitimate users, accesses patient records, or redirects users to phishing sites.
If Mitigated
Limited impact if proper input validation, output encoding, and Content Security Policy (CSP) are implemented; user education reduces click-through rates.
🎯 Exploit Status
Exploitation requires crafting a malicious URL and social engineering to get users to click it; no authentication needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Monitor MedDream vendor for security updates. 2. Apply patch when released. 3. Test in non-production environment first. 4. Restart services if required by patch.
🔧 Temporary Workarounds
Implement Web Application Firewall (WAF)
allDeploy a WAF with XSS protection rules to block malicious requests.
Enable Content Security Policy (CSP)
allConfigure CSP headers to restrict script execution sources.
Add 'Content-Security-Policy: default-src 'self'; script-src 'self'' to HTTP headers
🧯 If You Can't Patch
- Implement input validation and output encoding in the modifyRoute functionality to sanitize user inputs.
- Educate users about phishing risks and not clicking untrusted links.
🔍 How to Verify
Check if Vulnerable:
Test by injecting a simple XSS payload (e.g., <script>alert('XSS')</script>) into the modifyRoute parameter via URL and check if it executes.Check Version:
Check MedDream PACS Premium version in admin interface or configuration files.Verify Fix Applied:
After applying fixes, retest with XSS payloads to ensure they are properly sanitized or blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual URLs with script tags or JavaScript in modifyRoute parameter in web server logs.
- Multiple failed XSS attempts from same IP.
Network Indicators:
- HTTP requests containing suspicious strings like <script>, javascript:, or eval() in modifyRoute parameter.
SIEM Query:
source="web_logs" AND (url="*modifyRoute*<script>*" OR url="*modifyRoute*javascript:*")