CVE-2024-6667
📋 TL;DR
The KBucket WordPress plugin before version 4.1.5 contains a reflected cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts via unsanitized parameters. This vulnerability affects WordPress sites using the vulnerable plugin version and could be exploited against administrators. Attackers could steal session cookies, redirect users, or perform actions on behalf of authenticated users.
💻 Affected Systems
- KBucket: Your Curated Content WordPress plugin
📦 What is this software?
Kbucket by Optimalaccess
⚠️ Risk & Real-World Impact
Worst Case
Administrator account compromise leading to full site takeover, data theft, or malware distribution to visitors.
Likely Case
Session hijacking of administrators, credential theft, or unauthorized actions performed by tricked admins.
If Mitigated
Limited impact if administrators use browser security features like Content Security Policy or script blockers.
🎯 Exploit Status
Reflected XSS typically requires social engineering to trick admins into clicking malicious links. Exploit code is publicly available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.1.5
Vendor Advisory: https://wpscan.com/vulnerability/d2b8ca6c-2b14-4d72-8e39-0f3ca5c23f56/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find KBucket plugin. 4. Click 'Update Now' if update available. 5. If no update available, download version 4.1.5+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable KBucket Plugin
allTemporarily disable the vulnerable plugin until patched.
wp plugin deactivate kbucket
Implement Content Security Policy
allAdd CSP headers to prevent XSS execution.
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to wp-config.php: header("Content-Security-Policy: default-src 'self'");
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads in URL parameters.
- Restrict admin panel access to trusted IP addresses only using .htaccess or firewall rules.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → KBucket version. If version is below 4.1.5, system is vulnerable.Check Version:
wp plugin get kbucket --field=versionVerify Fix Applied:
Confirm KBucket plugin version is 4.1.5 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual GET requests with script tags in parameters to KBucket plugin pages
- Multiple failed login attempts following suspicious URL accesses
Network Indicators:
- HTTP requests containing <script> tags or javascript: URIs in query parameters
- Outbound connections to unknown domains from admin sessions
SIEM Query:
source="web_access.log" AND uri="*kbucket*" AND (query="*<script>*" OR query="*javascript:*")