CVE-2024-5079
📋 TL;DR
The wp-eMember WordPress plugin before version 10.6.7 has a stored cross-site scripting (XSS) vulnerability in member registration fields. Unauthenticated attackers can inject malicious scripts that execute when administrators view member data. This affects all WordPress sites using vulnerable versions of the wp-eMember plugin.
💻 Affected Systems
- wp-eMember WordPress Plugin
📦 What is this software?
Wp Emember by Tipsandtricks Hq
⚠️ Risk & Real-World Impact
Worst Case
Attackers steal administrator session cookies, take over the WordPress site, install backdoors, or redirect users to malicious sites.
Likely Case
Attackers deface the site, display malicious content to users, or steal user session data.
If Mitigated
With proper input validation and output escaping, the malicious scripts are neutralized before execution.
🎯 Exploit Status
Exploitation requires submitting malicious payloads through member registration forms. No authentication is required.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 10.6.7
Vendor Advisory: https://wpscan.com/vulnerability/bdb5509e-80ab-4e47-83a4-9347796eec40/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find wp-eMember plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 10.6.7+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable Member Registration
allTemporarily disable new member registrations to prevent exploitation.
Input Validation Filter
allAdd custom PHP filter to sanitize registration form inputs before processing.
Add to theme's functions.php or custom plugin: add_filter('emember_registration_data', 'sanitize_emember_inputs'); function sanitize_emember_inputs($data) { foreach($data as $key => $value) { $data[$key] = sanitize_text_field($value); } return $data; }
🧯 If You Can't Patch
- Disable the wp-eMember plugin completely until patching is possible.
- Implement a web application firewall (WAF) with XSS protection rules.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for wp-eMember version. If version is below 10.6.7, the site is vulnerable.Check Version:
wp plugin list --name=wp-eMember --field=version (if WP-CLI is installed)Verify Fix Applied:
After updating, verify wp-eMember version is 10.6.7 or higher in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to member registration endpoints with script tags or JavaScript in parameters.
- Multiple registration attempts with similar payloads from same IP.
Network Indicators:
- HTTP POST requests containing <script> tags or JavaScript code in registration form fields.
SIEM Query:
source="wordpress.log" AND ("wp-admin/admin-ajax.php" OR "emember") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")