CVE-2025-40700
📋 TL;DR
This reflected XSS vulnerability in IDI Eikon's Governalia allows attackers to execute malicious JavaScript in victims' browsers by tricking them into clicking a specially crafted URL. Attackers can steal session cookies, credentials, or perform actions as the victim. Organizations using Governalia web applications are affected.
💻 Affected Systems
- IDI Eikon Governalia
📦 What is this software?
Governalia by Idieikon
⚠️ Risk & Real-World Impact
Worst Case
Complete account takeover, sensitive data theft, and unauthorized administrative actions performed on behalf of authenticated users.
Likely Case
Session hijacking leading to unauthorized access to user accounts and potential data exfiltration.
If Mitigated
Limited impact if proper input validation, output encoding, and Content Security Policy are implemented.
🎯 Exploit Status
Simple reflected XSS via 'q' parameter in /search endpoint. No authentication required for exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in references
Vendor Advisory: https://www.incibe.es/en/incibe-cert/notices/aviso/reflected-cross-site-scripting-xss-governalia-idi-eikon
Restart Required: No
Instructions:
1. Contact IDI Eikon for patch information 2. Apply vendor-provided security update 3. Validate fix by testing the vulnerable endpoint
🔧 Temporary Workarounds
Web Application Firewall (WAF) Rule
allBlock or sanitize malicious input in 'q' parameter
WAF-specific configuration required
Input Validation Filter
allImplement server-side validation for search parameter
Application-specific code implementation required
🧯 If You Can't Patch
- Implement strict Content Security Policy (CSP) headers
- Deploy web application firewall with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Test /search endpoint with payload: <script>alert('XSS')</script> in 'q' parameterCheck Version:
Check application version via admin interface or contact vendorVerify Fix Applied:
Retest with same payload; script should not execute and input should be properly sanitized📡 Detection & Monitoring
Log Indicators:
- Unusual long or encoded strings in 'q' parameter
- Multiple failed search attempts with script-like patterns
Network Indicators:
- HTTP requests to /search with suspicious 'q' parameter values
- Outbound connections to unknown domains following search requests
SIEM Query:
web.url:*search?q=* AND (web.url:*<script* OR web.url:*javascript:* OR web.url:*onerror=*)