CVE-2024-10388
📋 TL;DR
This vulnerability allows unauthenticated attackers to inject malicious scripts into WordPress websites using the GDPR plugin. When users visit pages containing the injected scripts, their browsers execute the attacker's code. All WordPress sites using the vulnerable GDPR plugin versions are affected.
💻 Affected Systems
- WordPress GDPR plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, redirect users to malicious sites, deface websites, or perform actions on behalf of authenticated users.
Likely Case
Attackers inject malicious scripts to steal user data, display unwanted content, or redirect users to phishing sites.
If Mitigated
With proper input validation and output escaping, the malicious scripts would be neutralized and rendered harmless.
🎯 Exploit Status
The vulnerability requires no authentication and has simple exploitation vectors via form inputs.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.0.3 or later
Vendor Advisory: https://www.welaunch.io/en/product/wordpress-gdpr/#changelog
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Go to Plugins → Installed Plugins. 3. Find 'GDPR' plugin. 4. Click 'Update Now' if available. 5. If no update appears, manually download version 2.0.3+ from vendor site and replace plugin files.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily disable the GDPR plugin until patched
wp plugin deactivate gdpr
Apply input sanitization filter
allAdd custom sanitization for gdpr_firstname and gdpr_lastname parameters
Add filter in WordPress theme functions.php: add_filter('preprocess_gdpr_data', 'sanitize_text_field');
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads in form parameters
- Restrict plugin functionality to authenticated users only via access controls
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins → GDPR plugin version. If version is 2.0.2 or lower, you are vulnerable.Check Version:
wp plugin get gdpr --field=versionVerify Fix Applied:
After updating, verify plugin version shows 2.0.3 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests containing script tags in gdpr_firstname/gdpr_lastname parameters
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests with JavaScript payloads in form fields
- Unusual outbound connections from WordPress site after form submissions
SIEM Query:
source="web_logs" AND ("gdpr_firstname" OR "gdpr_lastname") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")