CVE-2026-8903

The Two-factor authentication (formerly IP Vault) plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.1. This is due to missing or incorrect nonce validation on the ipv_save_changes function. This makes it possible for unauthenticated attackers to modify the plugin's firewall and two-factor authentication settings — including the operating mode, request include/exclude rules, authentication slug, and log retention period — potentially disabling protection entirely via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

• CWE-352

• https://plugins.trac.wordpress.org/browser/ip-vault-wp-firewall/trunk/includes/admin-settings.php#L129
• https://plugins.trac.wordpress.org/browser/ip-vault-wp-firewall/trunk/includes/admin-settings.php#L14
• https://plugins.trac.wordpress.org/browser/ip-vault-wp-firewall/trunk/ip-vault.php#L482
• https://www.wordfence.com/threat-intel/vulnerabilities/id/5a58f809-d051-4841-a1da-7bc1cf59e1a2?source=cve

Published

May 27, 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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