The AI Engine – The Chatbot and AI Framework for WordPress plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the `rest_helpers_update_media_metadata` function in all versions up to, and including, 3.3.2. This makes it possible for authenticated attackers, with Editor-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. The attacker can upload a benign image file, then use the `update_media_metadata` endpoint to rename it to a PHP file, creating an executable PHP file in the uploads directory.
CVE-2026-1400 is a high severity with CVSS 7.2 Remote Code Execution issue affecting the Plugin AI Engine – The Chatbot, AI Framework & MCP for WordPress. It affects Versions up to 3.3.2 and is fixed in 3.3.3.
CVE-2026-1400 is tracked for the Plugin AI Engine – The Chatbot, AI Framework & MCP for WordPress as high severity with CVSS 7.2. The affected range is Versions up to 3.3.2. Update AI Engine – The Chatbot, AI Framework & MCP for WordPress to 3.3.3 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
ai-engine
View on wordpress.org
|
| CVE | CVE-2026-1400 |
| Patched Versions |
3.3.3
|
| Affected Versions |
Versions up to 3.3.2
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
AI Engine <= 3.1.3 - Unauthenticated Sensitive Information Exposure to Privilege Escalation
AI Engine: ChatGPT Chatbot <= 1.9.98 - Unauthenticated Arbitrary File Upload via rest_upload
AI Engine: ChatGPT Chatbot <= 2.2.63 - Authenticated (Editor+) Arbitrary File Upload
AI Engine 2.9.3 - 2.9.4 - Authenticated (Subscriber+) Arbitrary File Upload
AI Engine 2.8.0 - 2.8.3 - Authenticated (Subscriber+) Insufficient Authorization to Privilege Escalation via MCP
AI Engine 2.8.4 - Insecure OAuth Implementation
AI Engine – The Chatbot, AI Framework & MCP for WordPress <= 3.3.2 - Authenticated (Editor+) Arbitrary File Upload
AI Engine <= 2.5.0 - Authenticated (Admin+) Remote Code Execution
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