CVE-2024-5142
📋 TL;DR
A stored cross-site scripting (XSS) vulnerability in the Social Module of M-Files Hubshare allows authenticated attackers to inject malicious scripts that execute in other users' browsers. This affects all M-Files Hubshare installations before version 5.0.6.0. Attackers must have authenticated access to the system to exploit this vulnerability.
💻 Affected Systems
- M-Files Hubshare
📦 What is this software?
Hubshare by M Files
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, perform actions as other users, redirect to malicious sites, or install malware on user systems.
Likely Case
Attackers with authenticated access could steal credentials, perform limited account takeover, or deface content visible to other users.
If Mitigated
With proper input validation and output encoding, scripts would be rendered harmless as text rather than executable code.
🎯 Exploit Status
Exploitation requires authenticated access and knowledge of the Social Module interface. The attack vector is typical stored XSS through user input fields.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.0.6.0
Vendor Advisory: https://empower.m-files.com/security-advisories/CVE-2024-5142
Restart Required: Yes
Instructions:
1. Download M-Files Hubshare version 5.0.6.0 or later from the M-Files customer portal. 2. Backup your current installation and database. 3. Run the installer to upgrade to the patched version. 4. Restart the M-Files Hubshare services. 5. Verify the upgrade completed successfully.
🔧 Temporary Workarounds
Disable Social Module
allTemporarily disable the Social Module feature to prevent exploitation while planning upgrade.
Navigate to M-Files Hubshare Admin Console > Modules > Social Module > Disable
Implement WAF Rules
allConfigure web application firewall to block common XSS payloads in POST requests to Social Module endpoints.
Add WAF rules to filter script tags, javascript: URIs, and event handlers in user input
🧯 If You Can't Patch
- Restrict user permissions to minimize who can post content in Social Module
- Implement Content Security Policy (CSP) headers to restrict script execution
🔍 How to Verify
Check if Vulnerable:
Check M-Files Hubshare version in Admin Console > About. If version is below 5.0.6.0, system is vulnerable.Check Version:
In M-Files Hubshare Admin Console, navigate to Help > About to view current versionVerify Fix Applied:
After upgrading, verify version shows 5.0.6.0 or higher in Admin Console. Test Social Module functionality to ensure it works without allowing script injection.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to Social Module endpoints with script-like content
- Multiple failed login attempts followed by Social Module activity
Network Indicators:
- HTTP requests containing script tags, javascript: URIs, or on* event handlers in Social Module paths
SIEM Query:
source="m-files-hubshare" AND (uri_path="/social/*" AND (request_body CONTAINS "<script>" OR request_body CONTAINS "javascript:"))