CVE-2025-11256
📋 TL;DR
The Kognetiks Chatbot plugin for WordPress has a missing capability check vulnerability that allows unauthenticated attackers to upload limited safe files and erase conversation data. This affects all WordPress sites using the plugin version 2.3.5 or earlier. Attackers can manipulate chatbot functionality without authentication.
💻 Affected Systems
- Kognetiks Chatbot for WordPress
⚠️ 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 delete all chatbot conversation history, disrupt chatbot functionality, and upload files that might enable further attacks through file inclusion or other vulnerabilities.
Likely Case
Malicious actors erase chatbot conversations to disrupt user experience or upload files that could be used for phishing or other social engineering attacks.
If Mitigated
With proper file upload restrictions and conversation data backups, impact is limited to temporary service disruption.
🎯 Exploit Status
Attack requires no authentication and involves simple HTTP requests to vulnerable endpoints.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 2.3.6 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Kognetiks Chatbot' and click 'Update Now'. 4. Verify version is 2.3.6 or higher.
🔧 Temporary Workarounds
Disable vulnerable endpoints via .htaccess
ApacheBlock access to vulnerable plugin endpoints at web server level
# Add to .htaccess in WordPress root directory
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_URI} ^/wp-content/plugins/chatbot-chatgpt/.*
RewriteRule ^ - [F,L]
</IfModule>
🧯 If You Can't Patch
- Deactivate the Kognetiks Chatbot plugin immediately
- Implement WAF rules to block requests to /wp-content/plugins/chatbot-chatgpt/ endpoints
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins → Kognetiks Chatbot versionCheck Version:
wp plugin list --name=chatbot-chatgpt --field=versionVerify Fix Applied:
Verify plugin version is 2.3.6 or higher and test file upload/delete functionality requires authentication📡 Detection & Monitoring
Log Indicators:
- POST requests to /wp-content/plugins/chatbot-chatgpt/ endpoints from unauthenticated users
- File uploads to chatbot directories without authentication
- Conversation data deletion events
Network Indicators:
- Unusual traffic patterns to chatbot plugin endpoints
- File uploads to /wp-content/plugins/chatbot-chatgpt/upload/
SIEM Query:
source="web_server" AND (uri_path="/wp-content/plugins/chatbot-chatgpt/*" AND http_method="POST") AND user="-"🔗 References
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3380313%40chatbot-chatgpt&new=3380313%40chatbot-chatgpt&sfp_email=&sfph_mail=
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3380317%40chatbot-chatgpt&new=3380317%40chatbot-chatgpt&sfp_email=&sfph_mail=
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1c8fe389-ff44-4be3-889b-0006977f4f3c?source=cve
