AI Engine 3.4.9 - Authenticated (Subscriber+) Privilege Escalation via Missing Authorization in MCP OAuth Bearer Token
| CVE | CVE-2026-8719 |
|---|---|
| CVSS | 8.8 (High) |
| Publicly Published | May 16, 2026 |
| Last Updated | May 17, 2026 |
| Researcher |
daroo
|
Description
The AI Engine – The Chatbot, AI Framework & MCP for WordPress plugin for WordPress is vulnerable to Privilege Escalation in version 3.4.9. This is due to missing WordPress capability enforcement in the MCP OAuth bearer-token authorization path, where any valid OAuth token causes MCP access to be granted without verifying administrator privileges. This makes it possible for authenticated (Subscriber+) attackers to invoke admin-level MCP tools and escalate privileges to Administrator.
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Vulnerability Details for AI Engine – The Chatbot, AI Framework & MCP for WordPress
| Software Type | Plugin |
|---|---|
| Software Slug | ai-engine (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 3.5.0, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in AI Engine – The Chatbot, AI Framework & MCP for WordPress
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