CVE-2025-66149
📋 TL;DR
This CVE describes a Missing Authorization vulnerability in the merkulove UnGrabber WordPress plugin that allows attackers to bypass access controls. It affects all WordPress sites running UnGrabber versions up to 3.1.3, potentially enabling unauthorized access to restricted functionality.
💻 Affected Systems
- merkulove UnGrabber 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
Attackers could modify plugin settings, access administrative functions, or manipulate content without authorization, potentially leading to site compromise.
Likely Case
Unauthorized users can access or modify plugin-specific functionality that should be restricted to administrators or authenticated users.
If Mitigated
With proper access controls and authentication checks, the vulnerability would be prevented, limiting impact to authorized operations only.
🎯 Exploit Status
Exploitation requires understanding of WordPress plugin structure and access control mechanisms, but is straightforward once identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.1.4 or later
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/ungrabber/vulnerability/wordpress-ungrabber-plugin-3-1-3-broken-access-control-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find UnGrabber and click 'Update Now'. 4. Alternatively, download version 3.1.4+ from WordPress.org and manually replace plugin files.
🔧 Temporary Workarounds
Disable UnGrabber Plugin
allTemporarily deactivate the vulnerable plugin until patched
wp plugin deactivate ungrabber
Restrict Plugin Access
allUse WordPress roles/capabilities to limit who can access plugin functionality
🧯 If You Can't Patch
- Implement strict network access controls to limit who can access WordPress admin interface
- Enable WordPress security plugins that monitor for unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for UnGrabber version. If version is 3.1.3 or earlier, you are vulnerable.Check Version:
wp plugin get ungrabber --field=versionVerify Fix Applied:
After updating, verify UnGrabber version shows 3.1.4 or later in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to UnGrabber plugin endpoints
- Unexpected modifications to plugin settings
Network Indicators:
- Unusual HTTP requests to /wp-content/plugins/ungrabber/ paths from unauthorized IPs
SIEM Query:
source="wordpress.log" AND ("ungrabber" OR "wp-content/plugins/ungrabber") AND (status=403 OR status=401)