cascadiawebservices MountDev AI MCP Connector Plugin up to 1.6.1 on WordPress Dynamic Client Registration authorization

Summaryinfo

A vulnerability classified as critical was found in cascadiawebservices MountDev AI MCP Connector Plugin up to 1.6.1. This affects an unknown function of the component Dynamic Client Registration. Executing a manipulation can lead to authorization. This vulnerability is tracked as CVE-2026-15015. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in cascadiawebservices MountDev AI MCP Connector Plugin up to 1.6.1 and classified as critical. This vulnerability affects an unknown function of the component Dynamic Client Registration. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The MountDev AI MCP Connector for WordPress plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.6.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to obtain an administrator-bound OAuth Bearer token via a self-registered client, granting full administrator-equivalent access to the plugin's MCP tool surface and all exposed WordPress content, users, and options. This is exploitable by combining the publicly accessible Dynamic Client Registration endpoint, which allows unauthenticated callers to register arbitrary OAuth clients with an attacker-controlled redirect_uri, with the unprotected authorization endpoint to complete the full OAuth flow without any administrator interaction.

The advisory is available at wordfence.com. This vulnerability was named CVE-2026-15015 since 07/08/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/23/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• WordPress Plugin

Vendor

• cascadiawebservices

Name

• MountDev AI MCP Connector Plugin

Version

• 1.6.0
• 1.6.1

CPE 2.3info

• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒

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Threat Intelligenceinfo

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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