CVE-2026-107745

AI Engine <= 3.8.4 - Authenticated (Subscriber+) Limited Media File Deletion via 'metadata' Parameter

2026-10-27 14:29
Sawyer

Strategic Overview

Status
Patched in 3.8.5
Affected Plugin
AI Engine – MCP Server & AI Chatbot for WordPress, with Claude, ChatGPT & Gemini
Affected Version
<= 3.8.4
CVSS
4.2Medium
Weakness type
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE
CVE-2026-107745
View all AI Engine – MCP Server & AI Chatbot for WordPress, with Claude, ChatGPT & Gemini vulnerabilities

At a glance

CVE-2026-107745 is a medium-severity Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the AI Engine WordPress plugin, affecting versions <= 3.8.4. It carries a CVSS score of 4.2 (reachable over the network). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 3.8.5; sites on affected versions should update now. Disclosed October 2026, reported by Sawyer.

Vulnerability Overview

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.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, and no interaction from a victim user.

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Reaching this weakness in AI Engine <= 3.8.4 takes an account at Subscriber level or above. Path traversal happens when user-controlled text is used to build a filesystem path without being constrained to an intended directory, so sequences like ../ walk the resolved path somewhere else.

Depending on the operation, it means reading files outside the intended folder — wp-config.php being the usual target — or writing to and deleting paths the web server can touch. For AI Engine the fix is 3.8.5: builds <= 3.8.4 are affected, anything from 3.8.5 onward is not.

Remediation

Update to version 3.8.5, or a newer patched version

How does WordSec protect against this?

An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: AI Engine 3.8.5 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-107745https://www.wordfence.com/threat-intel/vulnerabilities/id/d4f8607c-711e-4d0e-8379-49346033a837https://nvd.nist.gov/vuln/detail/CVE-2026-107745

Related records

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