CVE-2025-9621: Widgetpack Comment System

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

The WidgetPack Comment System plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.6.1. This is due to missing or incorrect nonce validation on the wpcmt_sync action in the wpcmt_request_handler function. This makes it possible for unauthenticated attackers to trigger comment synchronization events via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

• Widgetpack Widgetpack Comment System: up to and including 1.6.1

Published 2025-10-11. Last modified 2026-10-08.