AI Engine 2.8.4 - Insecure OAuth Implementation

2025-07-03 00:00

István Márton

Strategic Overview

Status

Patched in 2.8.5

Affected PluginAI Engine – The Chatbot, AI Framework & MCP for WordPress

Affected Version2.8.4

CVSS8.0High

CVECVE-2025-6238

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

Vulnerability Overview

The AI Engine plugin for WordPress is vulnerable to open redirect in version 2.8.4. This is due to an insecure OAuth implementation, as the 'redirect_uri' parameter is missing validation during the authorization flow. This makes it possible for unauthenticated attackers to intercept the authorization code and obtain an access token by redirecting the user to an attacker-controlled URI. Note: OAuth is disabled, the 'Meow_MWAI_Labs_OAuth' class is not loaded in the plugin in the patched version 2.8.5.

Technical Analysis

REMEDIATION: Update to version 2.8.5, or a newer patched version --- IDENTIFIER: CWE-601 (URL Redirection to Untrusted Site ('Open Redirect')) The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.

External References

https://www.cve.org/CVERecord?id=CVE-2025-6238 https://www.wordfence.com/threat-intel/vulnerabilities/id/1edc84fd-8cb5-4899-9444-1b6ae3144917

CVSS Vector

8.0

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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