CVE-2022-47425

4.3 MEDIUM

📋 TL;DR

This CVE describes a missing authorization vulnerability in the ARMember WordPress plugin that allows attackers to bypass access controls. Attackers can exploit incorrectly configured security levels to access restricted content or functionality. This affects all ARMember plugin installations up to version 3.4.10.

💻 Affected Systems

Products:
  • ARMember WordPress Plugin
Versions: All versions up to and including 3.4.10
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects WordPress sites using ARMember plugin for membership management. Vulnerability exists in content restriction, member levels, user profile, and signup functionality.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of membership system allowing unauthorized access to premium content, user data exposure, privilege escalation, and potential site takeover if combined with other vulnerabilities.

🟠

Likely Case

Unauthorized access to restricted content, bypassing membership paywalls, accessing user profiles, and potentially modifying membership levels.

🟢

If Mitigated

Minimal impact with proper access controls, authentication checks, and security monitoring in place.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires some understanding of WordPress and ARMember functionality but is straightforward once identified. Attackers need to understand the access control mechanisms to bypass them.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.4.11 or later

Vendor Advisory: https://wordpress.org/plugins/armember-membership/#developers

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find ARMember plugin. 4. Click 'Update Now' if update available. 5. If no update shows, download version 3.4.11+ from WordPress repository. 6. Deactivate old version. 7. Upload and activate new version.

🔧 Temporary Workarounds

Temporary Plugin Deactivation

all

Disable ARMember plugin until patched version can be installed

wp plugin deactivate armember-membership

Access Restriction via .htaccess

linux

Add additional access controls to WordPress admin and plugin directories

# Add to .htaccess in wp-content/plugins/armember-membership/
Order Deny,Allow
Deny from all
Allow from 127.0.0.1

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to detect and block access control bypass attempts
  • Enable detailed logging of all access to restricted content and monitor for unauthorized access patterns

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → ARMember version. If version is 3.4.10 or lower, you are vulnerable.

Check Version:

wp plugin get armember-membership --field=version

Verify Fix Applied:

Verify ARMember plugin version is 3.4.11 or higher in WordPress admin panel. Test restricted content access with unauthorized user accounts.

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to restricted content endpoints
  • Multiple failed authorization checks for same user
  • Access to /wp-content/plugins/armember-membership/ from unauthorized IPs

Network Indicators:

  • Unusual traffic patterns to membership-restricted content
  • Requests bypassing authentication endpoints

SIEM Query:

source="wordpress.log" AND ("armember" OR "membership") AND ("unauthorized" OR "access denied" OR "restricted")

🔗 References

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