CVE-2024-10587
📋 TL;DR
This vulnerability allows authenticated WordPress users with Contributor-level access or higher to perform PHP object injection via deserialization of untrusted input in the Funnelforms Free plugin. While no known POP chain exists in the vulnerable software itself, if another plugin or theme provides a suitable POP chain, attackers could delete files, access sensitive data, or execute arbitrary code. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- Funnelforms Free - Interactive Contact Form and Multi Step Form Builder with Drag & Drop Editor for WordPress
⚠️ 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
Remote code execution leading to complete site compromise, data theft, or server takeover if a suitable POP chain exists from another plugin/theme.
Likely Case
Limited impact due to lack of known POP chain in the vulnerable plugin itself, but potential for file deletion or data access if other vulnerable components are present.
If Mitigated
Minimal impact if proper access controls limit Contributor accounts and no vulnerable plugins/themes provide POP chains.
🎯 Exploit Status
Exploitation requires authenticated access and depends on availability of POP chain from other installed components.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 3.7.4.1
Vendor Advisory: https://wordpress.org/plugins/funnelforms-free/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Funnelforms Free plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin immediately.
🔧 Temporary Workarounds
Restrict Contributor Access
allTemporarily restrict or remove Contributor-level user accounts until patching is complete.
Plugin Deactivation
allDeactivate the vulnerable plugin immediately to prevent exploitation.
🧯 If You Can't Patch
- Deactivate and remove the Funnelforms Free plugin completely
- Implement strict access controls to limit Contributor accounts and monitor their activity
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins for Funnelforms Free version 3.7.4.1 or earlier.Check Version:
wp plugin list --name=funnelforms-free --field=versionVerify Fix Applied:
Verify plugin version is higher than 3.7.4.1 in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to Funnelforms plugin endpoints from Contributor accounts
- PHP deserialization errors in web server logs
Network Indicators:
- HTTP requests containing serialized PHP objects to plugin endpoints
SIEM Query:
web_access_logs WHERE uri CONTAINS 'funnelforms' AND (post_data CONTAINS 'O:' OR post_data CONTAINS 'C:')