CVE-2025-12353
📋 TL;DR
The WPFunnels WordPress plugin has an authorization bypass vulnerability that allows unauthenticated attackers to register user accounts even when site registration is disabled. This affects all WordPress sites using WPFunnels versions up to 3.6.2. Attackers can create unauthorized accounts to potentially gain access to restricted areas.
💻 Affected Systems
- WPFunnels - The Easiest Funnel Builder For WordPress And WooCommerce
⚠️ 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 create administrative accounts, take over the WordPress site, install malware, or exfiltrate sensitive data.
Likely Case
Attackers create regular user accounts to spam, abuse resources, or use as foothold for further attacks.
If Mitigated
Attackers can create accounts but limited permissions prevent significant damage.
🎯 Exploit Status
Simple HTTP request manipulation required. No authentication needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.6.3 or later
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3389604/wpfunnels/trunk/public/class-wpfnl-public.php
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins. 3. Find WPFunnels plugin. 4. Click 'Update Now' if update available. 5. If no update available, manually download version 3.6.3+ from WordPress repository.
🔧 Temporary Workarounds
Disable WPFunnels plugin
allTemporarily deactivate the vulnerable plugin until patched
wp plugin deactivate wpfunnels
Block registration endpoints
allUse web application firewall to block requests to WPFunnels registration endpoints
🧯 If You Can't Patch
- Disable user registration completely in WordPress settings
- Implement rate limiting on registration endpoints
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > WPFunnels version. If version is 3.6.2 or lower, vulnerable.Check Version:
wp plugin get wpfunnels --field=versionVerify Fix Applied:
After update, verify WPFunnels version is 3.6.3 or higher in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual user registration activity
- Multiple user registrations from same IP
- Registration attempts with WPFunnels-specific parameters
Network Indicators:
- HTTP POST requests to /wp-json/wpfnl/v1/optin with registration parameters
- Unusual traffic to WPFunnels API endpoints
SIEM Query:
source="wordpress.log" AND "wpfnl" AND "registration" AND "user_created"