CVE-2024-11299
📋 TL;DR
The Memberpress WordPress plugin exposes sensitive information through WordPress core search functionality. Unauthenticated attackers can access restricted content meant for higher-privileged users like administrators. All WordPress sites using Memberpress versions up to 1.11.37 are affected.
💻 Affected Systems
- Memberpress WordPress Plugin
📦 What is this software?
Memberpress by Caseproof
⚠️ Risk & Real-World Impact
Worst Case
Attackers extract sensitive business data, customer information, or internal communications from restricted posts, leading to data breaches and compliance violations.
Likely Case
Unauthenticated users access member-only content, premium materials, or internal documentation that should be restricted to paying members or administrators.
If Mitigated
With proper access controls and monitoring, exposure is limited to non-critical information with quick detection of unauthorized access attempts.
🎯 Exploit Status
Exploitation requires no authentication and leverages built-in WordPress search functionality against Memberpress's content restriction system.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.12.0
Vendor Advisory: https://memberpress.com/change-log/#1.12.0
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Memberpress and click 'Update Now'. 4. Verify version shows 1.12.0 or higher.
🔧 Temporary Workarounds
Disable WordPress Search
allTemporarily disable WordPress core search functionality to prevent exploitation
Add 'remove_action('template_redirect', 'wp_old_slug_redirect');' to theme functions.php
Restrict Search Access
allImplement IP-based restrictions on search functionality
Add search.php access restrictions via .htaccess or web server configuration
🧯 If You Can't Patch
- Implement web application firewall rules to block suspicious search patterns
- Enable detailed logging of all search queries and monitor for unusual patterns
🔍 How to Verify
Check if Vulnerable:
Check Memberpress plugin version in WordPress admin panel under Plugins > Installed PluginsCheck Version:
wp plugin list --name=memberpress --field=versionVerify Fix Applied:
Verify Memberpress version is 1.12.0 or higher and test that restricted content no longer appears in search results📡 Detection & Monitoring
Log Indicators:
- Unusual search query patterns accessing restricted content URLs
- Multiple search requests from single IP addresses
Network Indicators:
- HTTP GET requests to search.php with specific keywords targeting restricted content
SIEM Query:
source="web_logs" AND uri_path="/search" AND (query="*restricted*" OR query="*member*" OR query="*premium*")