CVE-2026-2268
📋 TL;DR
The Ninja Forms WordPress plugin has a vulnerability that allows unauthenticated attackers to extract sensitive post metadata from any post on the site. This includes WooCommerce billing emails, API keys, private tokens, and customer personal information. All WordPress sites using Ninja Forms versions up to 3.14.0 are affected.
💻 Affected Systems
- Ninja Forms 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
Complete exposure of all post metadata including sensitive customer data, API keys, and authentication tokens leading to data breaches, account takeovers, and financial fraud.
Likely Case
Extraction of WooCommerce customer data, email addresses, and potentially API keys stored as post metadata.
If Mitigated
Limited exposure of non-sensitive post metadata if no sensitive data is stored in post meta fields.
🎯 Exploit Status
Exploitation requires sending crafted AJAX requests to the nf_ajax_submit endpoint. Public proof-of-concept code is available in security advisories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.14.1 and later
Vendor Advisory: https://wordpress.org/plugins/ninja-forms/#developers
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find Ninja Forms
4. Click 'Update Now' if available
5. Or manually download version 3.14.1+ from WordPress.org
6. Deactivate and replace plugin files
7. Reactivate plugin
🔧 Temporary Workarounds
Disable Ninja Forms Plugin
allTemporarily deactivate the Ninja Forms plugin until patched
wp plugin deactivate ninja-forms
Restrict AJAX Endpoint Access
linuxBlock access to the vulnerable nf_ajax_submit endpoint via web application firewall or .htaccess
# Add to .htaccess:
RewriteCond %{REQUEST_URI} ^/wp-admin/admin-ajax\.php$
RewriteCond %{QUERY_STRING} action=nf_ajax_submit
RewriteRule ^ - [F]
🧯 If You Can't Patch
- Implement web application firewall rules to block requests to the nf_ajax_submit endpoint
- Monitor logs for unusual AJAX requests targeting the Ninja Forms submission endpoint
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Ninja Forms → Version. If version is 3.14.0 or lower, you are vulnerable.Check Version:
wp plugin get ninja-forms --field=versionVerify Fix Applied:
Verify Ninja Forms version is 3.14.1 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- POST requests to /wp-admin/admin-ajax.php with action=nf_ajax_submit containing merge tag parameters
- Unusual volume of AJAX requests to Ninja Forms endpoints from single IPs
Network Indicators:
- HTTP POST requests with 'action=nf_ajax_submit' parameter and merge tag payloads
SIEM Query:
source="web_logs" AND uri="/wp-admin/admin-ajax.php" AND post_data="action=nf_ajax_submit" AND post_data CONTAINS "post_meta"🔗 References
- https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.13.3/includes/AJAX/Controllers/Submission.php#L222
- https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.13.3/includes/AJAX/Controllers/Submission.php#L706
- https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.13.3/includes/MergeTags/WP.php#L48
- https://plugins.trac.wordpress.org/changeset/3454719/ninja-forms/trunk/includes/AJAX/Controllers/Submission.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/24902fab-44ea-44c9-bcf5-70960cfeb402?source=cve
