CVE-2026-8719

HIGH

AI Engine for WordPress 3.4.9 - MCP OAuth Privilege Escalation

Title source: manual

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.

References (2)

Core 2

Core References

https://www.wordfence.com/threat-intel/vulnerabilities/id/0593c20d-3422-4817-9639-614254b609db?source=cve

https://plugins.trac.wordpress.org/changeset/3533527/ai-engine

Scores

CVSS v3 8.8

EPSS 0.0025

EPSS Percentile 16.1%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-269

Status published

Products (1)

tigroumeow/AI Engine – The Chatbot, AI Framework & MCP for WordPress 3.4.9

Published May 17, 2026

Tracked Since May 17, 2026