CVE-2025-47629
📋 TL;DR
This vulnerability allows attackers to inject malicious objects through deserialization of untrusted data in the WP-CRM System WordPress plugin. Successful exploitation could lead to remote code execution or data manipulation. All WordPress sites running WP-CRM System versions up to 3.4.1 are affected.
💻 Affected Systems
- WP-CRM System WordPress Plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete site compromise, data theft, or server takeover.
Likely Case
Arbitrary file upload leading to backdoor installation, data exfiltration, or privilege escalation.
If Mitigated
Limited impact if proper input validation and object deserialization controls are implemented.
🎯 Exploit Status
Deserialization vulnerabilities are commonly weaponized. No public PoC yet but technical details are available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.4.2 or later
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/wp-crm-system/vulnerability/wordpress-wp-crm-system-3-4-1-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 WP-CRM System
4. Click 'Update Now' if available
5. If no update shows, download latest version from WordPress repository
6. Deactivate old plugin
7. Upload and activate new version
🔧 Temporary Workarounds
Disable WP-CRM System Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate wp-crm-system
Restrict Plugin Access
allUse web application firewall to block requests to vulnerable endpoints
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all user inputs
- Deploy web application firewall with deserialization attack detection rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → WP-CRM System version. If version is 3.4.1 or lower, you are vulnerable.Check Version:
wp plugin get wp-crm-system --field=versionVerify Fix Applied:
Verify WP-CRM System plugin version is 3.4.2 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WP-CRM System endpoints
- Serialized data in request parameters
- Unexpected file uploads or PHP execution
Network Indicators:
- HTTP requests containing serialized PHP objects
- Traffic to known exploit patterns for CVE-2025-47629
SIEM Query:
source="web_logs" AND (uri_path="*wp-crm-system*" OR plugin="wp-crm-system") AND (request_body="*O:*" OR request_body="*C:*" OR request_body="*s:*")