CVE-2025-54007
📋 TL;DR
A PHP object injection vulnerability in PickPlugins Post Grid and Gutenberg Blocks WordPress plugins allows attackers to execute arbitrary code through deserialization of untrusted data. This affects all WordPress sites using vulnerable versions of these plugins, potentially leading to complete site compromise.
💻 Affected Systems
- PickPlugins Post Grid
- PickPlugins Gutenberg Blocks
⚠️ 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 server takeover, data theft, malware installation, and website defacement.
Likely Case
Arbitrary code execution within WordPress context, allowing plugin/theme file modification, admin access, and data exfiltration.
If Mitigated
Limited impact if proper web application firewalls and input validation are in place, though risk remains significant.
🎯 Exploit Status
Public exploit details available on Patchstack. Deserialization vulnerabilities are commonly weaponized in WordPress environments.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.3.12 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins. 3. Find 'Post Grid and Gutenberg Blocks'. 4. Click 'Update Now' if available. 5. Alternatively, download version 2.3.12+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable vulnerable plugins
allTemporarily disable Post Grid and Gutenberg Blocks plugins until patched
wp plugin deactivate post-grid
wp plugin deactivate gutenberg-blocks
Web Application Firewall rule
allBlock deserialization attempts at WAF level
Add rule to block requests containing serialized PHP objects in POST data
🧯 If You Can't Patch
- Remove vulnerable plugins completely from production
- Implement strict input validation and sanitization for all user inputs
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Post Grid and Gutenberg Blocks version. If version is 2.3.11 or lower, you are vulnerable.Check Version:
wp plugin get post-grid --field=version && wp plugin get gutenberg-blocks --field=versionVerify Fix Applied:
Verify plugin version is 2.3.12 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress admin-ajax.php or plugin endpoints
- PHP deserialization errors in logs
- Unexpected file modifications in wp-content/plugins/
Network Indicators:
- HTTP requests with serialized PHP objects in POST data
- Traffic to known exploit patterns for CVE-2025-54007
SIEM Query:
source="wordpress.log" AND ("post-grid" OR "gutenberg-blocks") AND ("unserialize" OR "O:" OR "C:" OR "a:" in request_body)