CVE-2024-6843
📋 TL;DR
The Chatbot with ChatGPT WordPress plugin before version 2.4.5 fails to properly sanitize user inputs, allowing unauthenticated attackers to inject malicious scripts. These scripts execute in administrators' browsers when viewing affected pages, enabling stored cross-site scripting attacks. All WordPress sites using vulnerable plugin versions are affected.
💻 Affected Systems
- Chatbot with ChatGPT WordPress plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator session cookies, perform actions as administrators (like installing backdoors), redirect users to malicious sites, or deface websites.
Likely Case
Attackers inject malicious JavaScript to steal administrator credentials or session tokens, potentially gaining administrative access to the WordPress site.
If Mitigated
With proper input validation and output escaping, the attack fails and malicious scripts are rendered harmless as text rather than executable code.
🎯 Exploit Status
The vulnerability is straightforward to exploit as it requires no authentication and involves simple script injection. Public proof-of-concept details are available in security advisories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.4.5
Vendor Advisory: https://wpscan.com/vulnerability/9a5cb440-065a-445a-9a09-55bd5f782e85/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Chatbot with ChatGPT' and check if version is below 2.4.5. 4. Click 'Update Now' if available, or manually update via FTP/SSH by replacing plugin files with version 2.4.5.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily deactivate the Chatbot with ChatGPT plugin until patched
wp plugin deactivate chatbot-with-chatgpt
Implement WAF rules
allConfigure web application firewall to block XSS payloads targeting the plugin
🧯 If You Can't Patch
- Restrict plugin access to trusted users only using WordPress role capabilities
- Implement Content Security Policy (CSP) headers to mitigate script execution
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for 'Chatbot with ChatGPT' version. If version is below 2.4.5, the site is vulnerable.Check Version:
wp plugin get chatbot-with-chatgpt --field=versionVerify Fix Applied:
After updating, verify the plugin version shows 2.4.5 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to plugin endpoints containing script tags or JavaScript code
- Multiple failed XSS attempts in web server logs
Network Indicators:
- HTTP requests with suspicious parameters containing <script>, javascript:, or encoded payloads
SIEM Query:
source="web_logs" AND (uri="*chatbot*" OR uri="*wp-content/plugins/chatbot-with-chatgpt*") AND (message="*<script>*" OR message="*javascript:*")