CVE-2025-60178
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on WordPress sites using the WP Gravity Forms HubSpot plugin (gf-hubspot) through insecure deserialization of untrusted data. Attackers can achieve remote code execution by exploiting object injection in the plugin. All WordPress sites running affected versions of this plugin are vulnerable.
💻 Affected Systems
- WP Gravity Forms HubSpot (gf-hubspot)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise leading to data theft, ransomware deployment, website defacement, and lateral movement to other systems.
Likely Case
Remote code execution allowing attackers to install backdoors, steal sensitive data, and use the compromised site for further attacks.
If Mitigated
Attack blocked at web application firewall level with proper input validation and sanitization in place.
🎯 Exploit Status
Deserialization vulnerabilities are commonly weaponized quickly due to available exploit frameworks.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.2.7 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins. 3. Find 'WP Gravity Forms HubSpot'. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 1.2.7+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate gf-hubspot
Web Application Firewall Rule
allBlock malicious deserialization attempts at WAF level
Add rule to block requests containing serialized PHP objects to HubSpot endpoints
🧯 If You Can't Patch
- Remove the plugin entirely if HubSpot integration is not critical
- Implement strict input validation and sanitization for all HubSpot-related form submissions
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > WP Gravity Forms HubSpot versionCheck Version:
wp plugin get gf-hubspot --field=versionVerify Fix Applied:
Verify plugin version is 1.2.7 or higher in WordPress admin📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to HubSpot endpoints
- PHP deserialization errors in web server logs
- Unexpected file creation in wp-content/uploads
Network Indicators:
- Suspicious outbound connections from web server
- Unusual traffic patterns to HubSpot API endpoints
SIEM Query:
source="web_server" AND ("gf-hubspot" OR "hubspot") AND ("unserialize" OR "php_object" OR "O:")