Vulnerability · Published Sep 15, 2026 · Assigned by Wordfence
CVE-2026-89141AI Engine <= 3.7.7 - Insecure Direct Object Reference to Authenticated (Subscriber+) Sensitive Attachment Disclosure via 'mediaId' Parameter
Medium 6.5
In plain English
A medium-severity authorization bypass via user-controlled key in AI Engine – The Chatbot, AI Framework & MCP for WordPress from tigroumeow. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).
Official description
The AI Engine – The Chatbot, AI Framework & MCP for WordPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.7.7 via the 'mediaId' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to access and retrieve the transcribed contents of private audio attachments belonging to other users, including Administrators, via a supplied attachment ID. This vulnerability requires the Public API module to be enabled in the plugin settings; when disabled, the REST route is absent and the endpoint returns HTTP 404.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| tigroumeow | AI Engine – The Chatbot, AI Framework & MCP for WordPress | 0 – through 3.7.7 |
Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2cb2ad5d-aa92-4186-aaae-45dde4a52f30?source=cve
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.7.7/classes/api.php#L663
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.7.7/classes/api.php#L637
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.7.7/classes/core.php#L253
- https://plugins.trac.wordpress.org/browser/ai-engine/tags/3.7.7/classes/api.php#L1168
- https://plugins.trac.wordpress.org/changeset/3693379