AI Engine – MCP Server & AI Chatbot for WordPress, with Claude, ChatGPT & Gemini: Limited media-file deletion

The AI Engine – The Chatbot, AI Framework & MCP for WordPress plugin for WordPress is vulnerable to limited media file deletion due to insufficient file path validation in the upload_file function in all versions up to, and including, 3.8.4 This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary media files on the server. This requires the administrator to have enabled the Public API option, and exploitation depends on the hourly cleanup_files task running after the malicious upload. The structured affected range is <= 3.8.4.

CVE / CNA score 4.2 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: AI Engine – MCP Server & AI Chatbot for WordPress, with Claude, ChatGPT & Gemini
Plugin slug: ai-engine
Affected: <= 3.8.4
Safe version: 3.8.5
Published: Oct 28, 2026
Weakness: CWE-22 — Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

This CVE was published Oct 28, 2026 and is one of 44 known issues for this plugin.

What to do

Update, patch or deactivate.

Update to a supported release containing the confirmed fix: 3.8.5. Exclude internal upload metadata from user control and constrain cleanup to the plugin’s own expired upload files. Official author notes: https://wordpress.org/plugins/ai-engine/#developers.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

CVE / CNA vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L

References

Primary and upstream sources

Data attribution: This product uses the NVD API but is not endorsed or certified by the NVD.

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