CVE-2025-54759
📋 TL;DR
Sante PACS Server contains a stored cross-site scripting vulnerability that allows attackers to inject malicious HTML code. When exploited, this can redirect users to malicious websites and steal session cookies. Healthcare organizations using vulnerable Sante PACS Server versions are affected.
💻 Affected Systems
- Sante PACS Server
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of user sessions leading to unauthorized access to medical imaging data, potential data theft, and lateral movement within healthcare networks.
Likely Case
Session hijacking allowing attackers to impersonate legitimate users, potentially accessing patient medical records and sensitive healthcare data.
If Mitigated
Limited impact with proper input validation and output encoding, potentially only affecting specific user interfaces.
🎯 Exploit Status
Requires ability to inject malicious HTML into the application, which then executes when other users view the compromised content.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched version
Vendor Advisory: https://www.santesoft.com/security-advisories (example - actual URL may differ)
Restart Required: No
Instructions:
1. Contact SanteSoft for the security patch. 2. Apply the patch according to vendor instructions. 3. Test the patch in a non-production environment first. 4. Deploy to production systems during maintenance windows.
🔧 Temporary Workarounds
Input Validation and Output Encoding
allImplement strict input validation and proper output encoding for all user-supplied content
Content Security Policy
webImplement Content Security Policy headers to restrict script execution
Add 'Content-Security-Policy' header with appropriate directives
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Restrict user permissions to minimize injection opportunities and implement session timeout policies
🔍 How to Verify
Check if Vulnerable:
Test for XSS by attempting to inject HTML/JavaScript payloads into user-controllable fields and observing if they executeCheck Version:
Check Sante PACS Server administration interface or configuration files for version informationVerify Fix Applied:
Retest XSS injection attempts after patching; payloads should be properly sanitized and not execute📡 Detection & Monitoring
Log Indicators:
- Unusual HTML/JavaScript patterns in user input logs
- Multiple failed login attempts from new locations after XSS execution
Network Indicators:
- Outbound connections to suspicious domains following legitimate user sessions
- Unexpected redirects in HTTP traffic
SIEM Query:
source="web_logs" AND (message="*<script>*" OR message="*javascript:*" OR message="*onload=*" OR message="*onerror=*")