MCP Server for WordPress vulnerabilities

The MCP Server for WordPress plugin before 1.8.2 does not perform an object-level authorization check on one of its workflow REST routes. Users with the Contributor role can disclose the title and publication status of any post, page or custom post type, including other users' private, draft, pending and scheduled content.

The MCP Server for WordPress plugin before 1.8.2 does not perform an ownership or sufficient capability check on its workflow create, update and delete REST routes. Users with the Contributor role can modify, delete and create site-wide workflow configuration, including workflows created by administrators.

The MCP Server for WordPress plugin before 1.8.2 does not correctly verify the WordPress REST API nonce for cookie-authenticated requests when a condition an attacker can influence is present. This allows unauthenticated attackers to perform administrator-only actions, including creating a new administrator account, by tricking a logged-in administrator into visiting a crafted page.