CVE-2024-13516
📋 TL;DR
The Kubio AI Page Builder WordPress plugin has a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts via the 'message' parameter. This affects all WordPress sites using Kubio AI Page Builder versions 2.3.5 and earlier. Attackers can exploit this by tricking users into clicking specially crafted links.
💻 Affected Systems
- Kubio AI Page Builder WordPress Plugin
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, redirect users to malicious sites, perform actions on behalf of authenticated users, or deliver malware payloads.
Likely Case
Attackers will use this for session hijacking, credential theft, or redirecting users to phishing pages.
If Mitigated
With proper web application firewalls and user awareness training, impact is limited to unsuccessful phishing attempts.
🎯 Exploit Status
Exploitation requires user interaction (clicking a link) but is otherwise straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.3.6 or later
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3186251/kubio/trunk/static/kubio-iframe-loader.html
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Kubio AI Page Builder. 4. Click 'Update Now' if available. 5. Alternatively, download version 2.3.6+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Web Application Firewall Rule
allBlock or sanitize the 'message' parameter in requests to Kubio plugin endpoints.
Disable Plugin
linuxTemporarily disable Kubio AI Page Builder plugin until patched.
wp plugin deactivate kubio
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution
- Use a web application firewall to block XSS payloads in the 'message' parameter
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Kubio AI Page Builder version. If version is 2.3.5 or earlier, you are vulnerable.Check Version:
wp plugin get kubio --field=versionVerify Fix Applied:
After updating, verify version is 2.3.6 or later. Test by attempting to inject script via 'message' parameter and confirming it's properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual GET requests with script tags in 'message' parameter
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests containing <script> tags in query parameters
- Suspicious redirects from Kubio plugin pages
SIEM Query:
source="web_server_logs" AND (message="*<script>*" OR message="*javascript:*") AND uri="*kubio*"