CVE-2025-58819
📋 TL;DR
This vulnerability allows attackers to upload arbitrary files, including web shells, to WordPress servers running the Bulk Featured Image plugin. Attackers can gain full control of affected websites. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- WordPress Bulk Featured Image 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
Complete server compromise leading to data theft, ransomware deployment, or use as part of a botnet.
Likely Case
Website defacement, data exfiltration, or installation of backdoors for persistent access.
If Mitigated
Limited impact if file uploads are restricted at web server level or plugin is disabled.
🎯 Exploit Status
Simple HTTP POST request with malicious file upload can exploit this vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.2.3 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Bulk Featured Image. 4. Click 'Update Now' if available. 5. If no update available, disable and remove the plugin.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched.
wp plugin deactivate bulk-featured-image
Restrict Upload Directory
linuxSet web server permissions to prevent PHP execution in upload directories.
chmod -R 644 /path/to/wordpress/wp-content/uploads/
find /path/to/wordpress/wp-content/uploads/ -name '*.php' -delete
🧯 If You Can't Patch
- Remove the Bulk Featured Image plugin entirely from your WordPress installation.
- Implement web application firewall (WAF) rules to block file uploads to the affected plugin endpoint.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Bulk Featured Image version. If version is 1.2.2 or earlier, you are vulnerable.Check Version:
wp plugin get bulk-featured-image --field=versionVerify Fix Applied:
Verify plugin version is 1.2.3 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- HTTP POST requests to /wp-admin/admin-ajax.php with file upload parameters
- Unexpected .php files in wp-content/uploads directory
Network Indicators:
- Unusual outbound connections from web server post-file upload
- HTTP requests with suspicious file extensions in upload parameters
SIEM Query:
source="web_server_logs" AND (uri_path="/wp-admin/admin-ajax.php" AND method="POST" AND (file_extension="php" OR file_extension="phtml"))