CVE-2025-60091
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code through deserialization of untrusted data in the WP Gravity Forms Zoho CRM and Bigin plugin. It affects WordPress sites using vulnerable versions of this plugin. Attackers can achieve remote code execution without authentication.
💻 Affected Systems
- WP Gravity Forms Zoho CRM and Bigin (gf-zoho)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the WordPress site with remote code execution, data theft, and potential lateral movement to other systems.
Likely Case
Remote code execution leading to website defacement, malware installation, or data exfiltration.
If Mitigated
Limited impact if proper input validation and security controls prevent exploitation attempts.
🎯 Exploit Status
Deserialization vulnerabilities are commonly exploited and weaponized quickly.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.0 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins. 3. Find 'WP Gravity Forms Zoho CRM and Bigin'. 4. Update to version 1.3.0 or later. 5. Verify update completed successfully.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patching is possible.
wp plugin deactivate gf-zoho
Restrict Access
allUse web application firewall to block requests to vulnerable endpoints.
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all plugin inputs
- Deploy web application firewall with deserialization attack detection rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > WP Gravity Forms Zoho CRM and Bigin version numberCheck Version:
wp plugin list --name='WP Gravity Forms Zoho CRM and Bigin' --field=versionVerify Fix Applied:
Verify plugin version is 1.3.0 or higher in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to plugin endpoints
- PHP deserialization errors in logs
- Unexpected file creation or modification
Network Indicators:
- HTTP requests containing serialized PHP objects
- Traffic patterns to plugin-specific endpoints
SIEM Query:
source="wordpress.log" AND ("gf-zoho" OR "zoho-crm") AND ("unserialize" OR "deserialization" OR "php_object")