CVE-2025-47530
📋 TL;DR
This vulnerability allows attackers to inject malicious PHP objects through deserialization of untrusted data in the WPFunnels WordPress plugin. Successful exploitation could lead to remote code execution, data theft, or site takeover. All WordPress sites running vulnerable versions of WPFunnels are affected.
💻 Affected Systems
- WPFunnels 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 site compromise with remote code execution, allowing attackers to install backdoors, steal sensitive data, deface websites, or pivot to other systems.
Likely Case
Unauthenticated attackers achieve remote code execution, gaining administrative access to the WordPress site and potentially the underlying server.
If Mitigated
Attackers can still exploit the vulnerability but impact is limited by proper network segmentation, minimal user privileges, and security monitoring.
🎯 Exploit Status
The vulnerability is easily exploitable with publicly available proof-of-concept code. Attackers can exploit this without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.5.19 or later
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/wpfunnels/vulnerability/wordpress-wpfunnels-3-5-18-php-object-injection-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find WPFunnels and click 'Update Now'. 4. Verify version is 3.5.19 or higher.
🔧 Temporary Workarounds
Disable WPFunnels Plugin
allTemporarily disable the vulnerable plugin until patching is possible
wp plugin deactivate wpfunnels
Restrict Plugin Access
allUse web application firewall to block requests to WPFunnels endpoints
🧯 If You Can't Patch
- Implement strict network segmentation to isolate vulnerable WordPress instances
- Deploy web application firewall with rules to detect and block deserialization attacks
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → WPFunnels version. If version is 3.5.18 or lower, you are vulnerable.Check Version:
wp plugin get wpfunnels --field=versionVerify Fix Applied:
After updating, confirm WPFunnels version is 3.5.19 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WPFunnels endpoints
- PHP deserialization errors in logs
- Unexpected file uploads or modifications
Network Indicators:
- HTTP requests containing serialized PHP objects
- Traffic to WPFunnels admin-ajax.php with suspicious parameters
SIEM Query:
source="wordpress.log" AND ("wpfunnels" OR "admin-ajax.php") AND ("unserialize" OR "O:" OR "C:")