CVE-2026-15015 (GCVE-0-2026-15015)

Vulnerability from cvelistv5 – Published: 2026-07-23 09:33 – Updated: 2026-07-23 13:45
VLAI
Title
MountDev AI MCP Connector for WordPress <= 1.6.1 - Unauthenticated Privilege Escalation via OAuth Authorization Endpoint
Summary
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 13:45 UTC
CWE
Assigner
Wordfence CNA under the mitre root
CNA scorecard C 65/100 over 2401 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
cascadiawebservices MountDev AI MCP Connector for WordPress Affected: 0 , ≤ 1.6.1 (semver)
guessed Create a notification for this product.
Credits
AeonRisk
Show details on NVD website
To clipboard 

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