CVE-2026-1400
AI Engine <= 3.3.2 - Authenticated (Editor+) Arbitrary File Upload via 'filename' Parameter in update_media_metadata Endpoint
- State
- Published
- Severity
- 7.2 High
- Published
- Jan 28, 2026
- Updated
- Apr 8, 2026
- Reserved
- Jan 23, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.2 High | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | Wordfence |
Weaknesses
- CWE-434 Unrestricted Upload of File with Dangerous Type
Affected Products
| Product | Versions |
|---|---|
AI Engine – The Chatbot, AI Framework & MCP for WordPresstigroumeow |
|
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d5227269-4406-4fcf-af37-f1db0af857d6?source=cve
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.3.0/classes/rest.php#L1104
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.3.0/classes/rest.php#L1141
- https://plugins.trac.wordpress.org/changeset/3447500/ai-engine/trunk/classes/rest.php
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.