WP OAuth Server <= 4.2.3 - Cross-Site Request Forgery to Arbitrary Post Deletion (wo_ajax_remove_client)

6.5
Cross-Site Request Forgery (CSRF)
CVE CVE-2022-3894
CVSS 6.5 (Medium)
Publicly Published February 21, 2023
Last Updated January 22, 2024
Researcher István Márton - Wordfence

Description

The WP OAuth Server plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 4.2.3. This is due to missing or incorrect nonce validation on the wo_ajax_remove_clientfunction. This makes it possible for unauthenticated attackers to delete arbitrary posts, 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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Vulnerability Details for WP OAuth Server (OAuth Authentication)

Software Type Plugin
Software Slug oauth2-provider (view on wordpress.org)
Patched? Yes
Remediation Update to version 4.2.5, or a newer patched version
Affected Version
  • <= 4.2.3
Patched Version
  • 4.2.5

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