CVE-2025-60221
📋 TL;DR
This CVE describes a PHP object injection vulnerability in the Captivate Sync WordPress plugin that allows attackers to execute arbitrary code through deserialization of untrusted data. It affects all WordPress sites running vulnerable versions of the plugin. Attackers can exploit this to gain full control of affected websites.
💻 Affected Systems
- Captivate Sync 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
Remote code execution leading to complete website compromise, data theft, malware deployment, and server takeover.
Likely Case
Website defacement, backdoor installation, credential theft, and unauthorized administrative access.
If Mitigated
Limited impact if plugin is disabled or removed, though other vulnerabilities may still exist.
🎯 Exploit Status
Exploitation is straightforward with publicly available proof-of-concept code targeting WordPress deserialization vulnerabilities.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 3.0.4 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Captivate Sync and click 'Update Now'. 4. Verify version is 3.0.4 or higher.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched.
wp plugin deactivate captivatesync-trade
Remove Plugin
allCompletely remove the vulnerable plugin if not needed.
wp plugin delete captivatesync-trade
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block deserialization attacks
- Restrict access to WordPress admin interface using IP whitelisting
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Captivate Sync version numberCheck Version:
wp plugin get captivatesync-trade --field=versionVerify Fix Applied:
Verify plugin version is 3.0.4 or higher in WordPress admin📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress admin-ajax.php or admin-post.php
- PHP error logs containing unserialize() warnings
- Unexpected plugin activation/deactivation events
Network Indicators:
- HTTP requests with serialized PHP objects in parameters
- Traffic spikes to WordPress administrative endpoints
SIEM Query:
source="wordpress.log" AND ("captivatesync" OR "unserialize" OR "admin-ajax.php")