CVE-2023-39922
📋 TL;DR
This CVE describes a missing authorization vulnerability in the Avada WordPress theme that allows authenticated users to perform actions they shouldn't be authorized for. It affects all Avada installations up to version 7.11.1. The vulnerability enables privilege escalation or unauthorized data access for users with any level of WordPress authentication.
💻 Affected Systems
- ThemeFusion Avada WordPress Theme
📦 What is this software?
Avada by Theme Fusion
⚠️ Risk & Real-World Impact
Worst Case
An authenticated attacker could gain administrative privileges, modify site content, install malicious plugins/themes, or access sensitive user data.
Likely Case
Authenticated users (including subscribers) could modify their own permissions, access other users' data, or perform administrative actions without proper authorization.
If Mitigated
With proper access controls and monitoring, impact is limited to logged-in users attempting unauthorized actions that should be detected and blocked.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once authenticated. The vulnerability is in access control logic.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.11.2 and later
Vendor Advisory: https://theme-fusion.com/security-advisory/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Appearance > Themes. 3. Update Avada theme to version 7.11.2 or later. 4. No server restart required.
🔧 Temporary Workarounds
Temporary Theme Deactivation
allSwitch to a different WordPress theme until Avada can be updated
wp theme activate twentytwentyfour
Restrict User Registration
allDisable new user registration to limit potential attackers
wp option update users_can_register 0
🧯 If You Can't Patch
- Implement strict access controls and monitor user activity logs for unauthorized actions
- Apply web application firewall rules to block suspicious user privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check Avada theme version in WordPress admin under Appearance > ThemesCheck Version:
wp theme list --field=name,version | grep -i avadaVerify Fix Applied:
Verify Avada theme version is 7.11.2 or higher in WordPress admin📡 Detection & Monitoring
Log Indicators:
- Unauthorized user role changes in WordPress logs
- Unexpected admin actions from non-admin users
- Failed authorization attempts in theme-specific logs
Network Indicators:
- HTTP requests to Avada admin endpoints from non-admin users
- Unusual POST requests to user management endpoints
SIEM Query:
source="wordpress" (event="user_role_change" OR event="capability_update") AND user_role!="administrator"