CVE-2025-14437
📋 TL;DR
The Hummingbird Performance WordPress plugin exposes sensitive information including Cloudflare API credentials to unauthenticated attackers via the 'request' function. This affects all WordPress sites using Hummingbird Performance plugin versions up to 3.18.0. Attackers can steal credentials that could lead to further compromise of Cloudflare-protected resources.
💻 Affected Systems
- Hummingbird Performance 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 obtain Cloudflare API credentials, modify DNS settings, redirect traffic to malicious sites, disable security protections, and potentially take control of the entire domain infrastructure.
Likely Case
Attackers steal Cloudflare API credentials and use them to modify DNS records, potentially redirecting legitimate traffic or disabling security features like WAF and DDoS protection.
If Mitigated
If Cloudflare API tokens are properly scoped with minimal permissions, impact is limited to the specific permissions granted, though credential exposure still represents a significant security risk.
🎯 Exploit Status
The vulnerability is trivially exploitable via simple HTTP requests to the vulnerable endpoint. Proof of concept code is publicly available in the WordPress Trac changeset.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.18.1
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3421187/hummingbird-performance
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Hummingbird Performance. 4. Click 'Update Now' if available. 5. Alternatively, download version 3.18.1+ from WordPress.org and manually update.
🔧 Temporary Workarounds
Disable Cloudflare Integration
allTemporarily disable Cloudflare integration in Hummingbird settings to prevent credential exposure
Deactivate Plugin
allCompletely deactivate Hummingbird Performance plugin until patched
🧯 If You Can't Patch
- Immediately rotate all Cloudflare API tokens and credentials
- Implement web application firewall rules to block requests to the vulnerable endpoint
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Hummingbird Performance → Version. If version is 3.18.0 or lower, you are vulnerable.Check Version:
wp plugin list --name=hummingbird-performance --field=versionVerify Fix Applied:
Verify plugin version is 3.18.1 or higher in WordPress admin panel. Test the previously vulnerable endpoint to confirm it no longer returns sensitive data.📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP GET/POST requests to /wp-admin/admin-ajax.php with action=wphb_cloudflare
- Multiple failed authentication attempts to Cloudflare API from unexpected IPs
Network Indicators:
- Outbound connections to Cloudflare API from WordPress server with unusual patterns
- DNS record changes without corresponding admin activity
SIEM Query:
source="wordpress.logs" AND (uri="/wp-admin/admin-ajax.php" AND parameters CONTAINS "wphb_cloudflare")