CVE-2026-4002

The Petje.af plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 2.1.8. This is due to missing nonce validation in the ajax_revoke_token() function which handles the 'petjeaf_disconnect' AJAX action. The function performs destructive operations including revoking OAuth2 tokens, deleting user meta, and deleting WordPress user accounts (for users with the 'petjeaf_member' role) without verifying the request originated from a legitimate source. This makes it possible for unauthenticated attackers to force authenticated users to delete their Petje.af member user accounts via a forged request granted the victim clicks on a link or visits a malicious site.

• CWE-352

• https://plugins.trac.wordpress.org/browser/petje-af/tags/2.1.8/includes/class-petje-af-oauth2-provider.php#L326
• https://plugins.trac.wordpress.org/browser/petje-af/tags/2.1.8/includes/class-petje-af-oauth2-provider.php#L346
• https://plugins.trac.wordpress.org/browser/petje-af/tags/2.1.8/includes/class-petje-af.php#L182
• https://plugins.trac.wordpress.org/browser/petje-af/trunk/includes/class-petje-af-oauth2-provider.php#L326
• https://plugins.trac.wordpress.org/browser/petje-af/trunk/includes/class-petje-af-oauth2-provider.php#L346
• https://plugins.trac.wordpress.org/browser/petje-af/trunk/includes/class-petje-af.php#L182
• https://www.wordfence.com/threat-intel/vulnerabilities/id/28a071ac-37ee-4fb9-b8c6-0a782ee673b4?source=cve

Published

Apr 15, 2026

Last Modified

Jun 17, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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