CVE-2025-60174
📋 TL;DR
This vulnerability allows attackers to execute arbitrary code on WordPress sites using the Gravity Forms Constant Contact plugin by exploiting insecure deserialization. Attackers can achieve remote code execution, data theft, or complete site compromise. All WordPress sites running affected plugin versions are vulnerable.
💻 Affected Systems
- WP Gravity Forms Constant Contact Plugin (gf-constant-contact)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete server compromise leading to data exfiltration, ransomware deployment, or use as attack platform for lateral movement.
Likely Case
Website defacement, credential theft, malware injection, or unauthorized administrative access to the WordPress site.
If Mitigated
Limited impact if proper web application firewalls and input validation are in place, though risk remains significant.
🎯 Exploit Status
Deserialization vulnerabilities are commonly weaponized. CVSS 9.8 indicates trivial exploitation with high impact.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.1.3 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'WP Gravity Forms Constant Contact Plugin'. 4. Click 'Update Now' if available. 5. If no update appears, manually download version 1.1.3+ from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate gf-constant-contact
Web Application Firewall Rule
allBlock deserialization attempts at WAF level
Add rule to block requests containing serialized PHP objects in POST/PUT data
🧯 If You Can't Patch
- Isolate affected WordPress instance behind strict network segmentation
- Implement comprehensive monitoring for unusual PHP process activity and file modifications
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for 'WP Gravity Forms Constant Contact Plugin' version 1.1.2 or earlierCheck Version:
wp plugin get gf-constant-contact --field=versionVerify Fix Applied:
Confirm plugin version is 1.1.3 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress admin-ajax.php or plugin endpoints
- PHP errors related to unserialize() or object injection
- Unexpected file creation in wp-content/uploads
Network Indicators:
- HTTP requests with serialized data in parameters
- Traffic patterns suggesting reconnaissance of plugin endpoints
SIEM Query:
source="wordpress.log" AND ("unserialize" OR "gf-constant-contact" OR "admin-ajax.php") AND status>=400