CVE-2024-52369
📋 TL;DR
This vulnerability allows attackers to upload arbitrary files, including web shells, to web servers running the KBucket WordPress plugin. Attackers can gain remote code execution and potentially full control of affected systems. All WordPress sites using KBucket versions up to 4.1.6 are affected.
💻 Affected Systems
- Optimal Access Inc. KBucket 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
Complete server compromise leading to data theft, ransomware deployment, lateral movement to other systems, and persistent backdoor installation.
Likely Case
Web shell upload leading to website defacement, data exfiltration, cryptocurrency mining, or use as part of a botnet.
If Mitigated
File upload attempts blocked at WAF level, with alerts generated for investigation.
🎯 Exploit Status
Simple HTTP POST request with malicious file upload. Public exploit details available on security research sites.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.1.7 or later
Vendor Advisory: https://patchstack.com/database/vulnerability/kbucket/wordpress-kbucket-plugin-4-1-6-arbitrary-file-upload-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find KBucket plugin and click 'Update Now'. 4. Verify update to version 4.1.7 or higher.
🔧 Temporary Workarounds
Disable KBucket Plugin
allTemporarily disable the vulnerable plugin until patching is possible
wp plugin deactivate kbucket
WAF File Upload Blocking
allConfigure web application firewall to block uploads to KBucket endpoints
🧯 If You Can't Patch
- Remove upload directory write permissions for web server user
- Implement file upload validation at application layer before KBucket processes files
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → KBucket version. If version ≤ 4.1.6, system is vulnerable.Check Version:
wp plugin get kbucket --field=versionVerify Fix Applied:
Confirm KBucket plugin version is 4.1.7 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- HTTP POST requests to /wp-content/plugins/kbucket/ upload endpoints
- File uploads with .php, .phtml, or other executable extensions
- Unusual file creation in upload directories
Network Indicators:
- POST requests with file uploads to KBucket-specific endpoints
- Subsequent connections to uploaded malicious files
SIEM Query:
source="web_server" AND (uri_path="/wp-content/plugins/kbucket/" AND method="POST") AND (file_extension="php" OR file_extension="phtml" OR file_extension="jsp")