CVE-2025-48055
📋 TL;DR
This vulnerability allows attackers to inject malicious scripts into the user portal's browse brick in Combodo iTop, potentially compromising user sessions and data. It affects all iTop installations running versions before 3.2.2. Users accessing the vulnerable portal pages are at risk.
💻 Affected Systems
- Combodo iTop
📦 What is this software?
Itop by Combodo
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, redirect users to malicious sites, perform actions on behalf of authenticated users, or install malware on client systems.
Likely Case
Session hijacking leading to unauthorized access to IT service management data, user impersonation, and potential data exfiltration.
If Mitigated
Limited to client-side impact with proper input validation and output encoding controls in place.
🎯 Exploit Status
Exploitation requires user interaction with malicious content in the browse brick. The advisory suggests the vulnerability is in content display logic.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.2.2 or 3.3.0
Vendor Advisory: https://github.com/Combodo/iTop/security/advisories/GHSA-684h-f39j-5gq8
Restart Required: Yes
Instructions:
1. Backup your iTop installation and database. 2. Download iTop version 3.2.2 or 3.3.0 from the official repository. 3. Follow the iTop upgrade documentation to apply the update. 4. Restart your web server and verify the upgrade.
🔧 Temporary Workarounds
Disable User Portal
allTemporarily disable the user portal to prevent exploitation while planning upgrade.
# Modify iTop configuration to disable user portal access
# Edit configuration file to restrict portal functionality
Implement WAF Rules
allDeploy web application firewall rules to block XSS payloads in browse brick requests.
# Example ModSecurity rule: SecRule ARGS "<script" "id:1001,phase:2,deny"
🧯 If You Can't Patch
- Implement strict Content Security Policy headers to mitigate script execution
- Enable input validation and output encoding for all user-controlled content in the portal
🔍 How to Verify
Check if Vulnerable:
Check your iTop version via the administration interface or by examining the version file in the installation directory.Check Version:
grep 'ITOP_VERSION' /path/to/iTop/conf/production/config-itop.phpVerify Fix Applied:
After upgrading, verify the version shows 3.2.2 or higher and test the browse brick functionality with safe test payloads.📡 Detection & Monitoring
Log Indicators:
- Unusual JavaScript payloads in user portal requests
- Multiple failed XSS attempts in web server logs
- Unexpected redirects from portal pages
Network Indicators:
- Suspicious script tags in HTTP requests to portal endpoints
- Unexpected external resource loads from portal pages
SIEM Query:
source="web_server" AND (uri_path="*/portal/*" OR uri_path="*/browse*") AND (http_request CONTAINS "<script" OR http_request CONTAINS "javascript:")