CVE-2023-48974

9.6 CRITICAL

📋 TL;DR

This Cross-Site Scripting (XSS) vulnerability in Axigen WebMail allows remote attackers to inject malicious scripts via the serverName_input parameter. Successful exploitation could enable privilege escalation, potentially compromising user accounts and mail server security. Organizations running Axigen WebMail versions prior to 10.3.3.61 are affected.

💻 Affected Systems

Products:
  • Axigen WebMail
Versions: All versions prior to 10.3.3.61
Operating Systems: All supported platforms
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects the WebMail interface component of Axigen Mail Server

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attacker gains administrative privileges, accesses all email accounts, steals sensitive data, and potentially takes full control of the mail server infrastructure.

🟠

Likely Case

Attacker compromises user accounts, steals credentials and emails, and uses the mail server for phishing campaigns or lateral movement within the network.

🟢

If Mitigated

Script execution is blocked by modern browser security features or web application firewalls, limiting impact to session hijacking of individual users.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Requires user interaction or social engineering to trigger the malicious script

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 10.3.3.61

Vendor Advisory: https://www.axigen.com/updates/axigen-10.3.3.61

Restart Required: Yes

Instructions:

1. Download Axigen 10.3.3.61 from official website
2. Backup current configuration and data
3. Stop Axigen services
4. Install the update
5. Restart Axigen services
6. Verify WebMail functionality

🔧 Temporary Workarounds

Web Application Firewall

all

Deploy WAF with XSS protection rules to filter malicious input

Content Security Policy

all

Implement strict CSP headers to prevent script execution

🧯 If You Can't Patch

  • Restrict WebMail access to trusted networks only
  • Implement strong authentication and session management controls

🔍 How to Verify

Check if Vulnerable:

Check Axigen version via admin interface or command line: axigen --version

Check Version:

axigen --version

Verify Fix Applied:

Confirm version is 10.3.3.61 or later and test WebMail functionality

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to WebMail with script-like content in parameters
  • Multiple failed login attempts followed by successful access

Network Indicators:

  • HTTP requests containing script tags or JavaScript in serverName_input parameter
  • Unusual outbound connections from mail server

SIEM Query:

source="axigen" AND (http_uri="*serverName_input*" AND http_content="*<script>*")

🔗 References

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