Security Advisory

CVE-2025-9891

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-09-17 01:53:14

Last updated 2026-04-08 16:59:00

Assigner Wordfence

State PUBLISHED

Description

The User Sync – Remote User Sync plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.2. This is due to missing or incorrect nonce validation on the mo_user_sync_form_handler() function. This makes it possible for unauthenticated attackers to deactivate the plugin via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

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