CVE-2025-23366
📋 TL;DR
This CVE describes a cross-site scripting (XSS) vulnerability in the HAL Console of Wildfly's management interface. Authenticated users with SuperUser, Admin, or Maintainer privileges can inject malicious scripts that execute in other administrators' browsers when viewing affected pages. This affects organizations using Wildfly with the HAL Console enabled and management users with elevated privileges.
💻 Affected Systems
- Wildfly Application Server
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An authenticated malicious administrator could steal session cookies, perform actions as other administrators, or redirect users to malicious sites, potentially leading to full system compromise.
Likely Case
Privilege escalation within the management interface, session hijacking of other administrators, or data exfiltration from administrative sessions.
If Mitigated
Limited impact due to proper access controls, network segmentation, and regular credential rotation limiting the attack surface.
🎯 Exploit Status
Exploitation requires authenticated access with specific privileged roles, making it accessible to insiders or compromised accounts.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Red Hat advisories RHSA-2025:10924 and RHSA-2025:10926 for specific fixed versions
Vendor Advisory: https://access.redhat.com/security/cve/CVE-2025-23366
Restart Required: Yes
Instructions:
1. Review Red Hat advisories for applicable patches. 2. Apply the recommended updates to Wildfly. 3. Restart Wildfly services. 4. Verify the fix by testing the HAL Console.
🔧 Temporary Workarounds
Disable HAL Console
allTemporarily disable the HAL Console management interface if not required.
Edit Wildfly configuration to disable HAL Console module
Restrict Management Access
allLimit network access to Wildfly management interfaces to trusted IPs only.
Configure firewall rules to restrict access to management ports
🧯 If You Can't Patch
- Implement strict access controls and monitor privileged user activities
- Use web application firewalls (WAF) with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Check Wildfly version against Red Hat advisories and verify HAL Console is accessible to privileged users.Check Version:
$WILDFLY_HOME/bin/standalone.sh --version or check server logsVerify Fix Applied:
After patching, test the HAL Console for XSS vulnerabilities using security testing tools.📡 Detection & Monitoring
Log Indicators:
- Unusual administrative activities
- Multiple failed login attempts to management interface
- Suspicious JavaScript in management requests
Network Indicators:
- Unexpected outbound connections from Wildfly management interface
- Traffic patterns suggesting session hijacking
SIEM Query:
source="wildfly" AND (event="management_login" OR event="hal_console_access") AND user_role IN ("SuperUser", "Admin", "Maintainer")