CVE-2025-46611
📋 TL;DR
A cross-site scripting (XSS) vulnerability in ARTEC EMA Mail version 6.92 allows attackers to inject malicious scripts into web pages viewed by users. This affects organizations using ARTEC EMA Mail v6.92 for email management, potentially compromising user sessions and data.
💻 Affected Systems
- ARTEC EMA Mail
📦 What is this software?
Ema by Artec It
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, redirect users to malicious sites, perform actions on behalf of authenticated users, or deliver malware through the email interface.
Likely Case
Session hijacking leading to unauthorized access to email accounts, data theft, or phishing attacks against other users.
If Mitigated
Limited impact with proper input validation, output encoding, and Content Security Policy (CSP) headers in place.
🎯 Exploit Status
Exploitation requires the attacker to trick a user into clicking a malicious link or viewing crafted content. The SYSYS blog provides technical details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.artec-it.com/en-us/ema.html
Restart Required: No
Instructions:
1. Check ARTEC website for security updates. 2. Apply any available patches. 3. Verify fix by testing XSS vectors.
🔧 Temporary Workarounds
Implement Content Security Policy
allAdd CSP headers to restrict script execution sources
Add 'Content-Security-Policy: default-src 'self'; script-src 'self'' to web server configuration
Input Validation Filtering
allFilter script tags and JavaScript events from user input
Implement input sanitization in web application code to remove <script>, onerror, onclick, and other dangerous attributes
🧯 If You Can't Patch
- Restrict network access to EMA Mail web interface using firewall rules
- Implement web application firewall (WAF) with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Test with XSS payloads like <script>alert('XSS')</script> in email content or subject fieldsCheck Version:
Check EMA Mail administration interface or About page for version informationVerify Fix Applied:
Retest with same XSS payloads after applying mitigations - scripts should not execute📡 Detection & Monitoring
Log Indicators:
- Unusual script tags in web server logs
- Multiple failed XSS attempts
Network Indicators:
- HTTP requests containing script tags or JavaScript code in parameters
SIEM Query:
source="web_logs" AND ("<script" OR "javascript:" OR "onerror=" OR "onclick=")