CVE-2026-27407

AI Engine – The Chatbot, AI Framework & MCP for WordPress <= 3.4.9 - Authenticated (Editor+) Privilege Escalation

2026-05-28 00:00

Strategic Overview

Status: Patched in 3.5.0
Affected Plugin: AI Engine – The Chatbot, AI Framework & MCP for WordPress
Affected Version: <= 3.4.9
CVSS: 7.2High
Weakness type: CWE-266 · Incorrect Privilege Assignment
CVE: CVE-2026-27407

View all AI Engine – The Chatbot, AI Framework & MCP for WordPress vulnerabilities

At a glance

CVE-2026-27407 is a high-severity Incorrect Privilege Assignment vulnerability in the AI Engine WordPress plugin, affecting versions <= 3.4.9. It carries a CVSS score of 7.2 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Editor level or above. The issue is fixed in version 3.5.0; sites on affected versions should update now. Disclosed May 2026, reported by Phat RiO.

Vulnerability Overview

The AI Engine – The Chatbot, AI Framework & MCP for WordPress plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.4.9. This makes it possible for authenticated attackers, with Editor-level access and above, to elevate their privileges.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-266: Incorrect Privilege Assignment

A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.

Remediation

Update to version 3.5.0, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: AI Engine 3.5.0 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-27407 https://www.wordfence.com/threat-intel/vulnerabilities/id/b73edf8f-7017-4239-8ddc-038481d3f65f https://nvd.nist.gov/vuln/detail/CVE-2026-27407

Related records

Other vulnerabilities in AI Engine – The Chatbot, AI Framework & MCP for WordPress

CVSS Vector

7.2

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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