PT-2026-43532 · Youtag · Two-Factor Authentication

Muhammad Afnaan · Published 2026-05-27 · Updated 2026-05-27 · CVE-2026-8903

Mitre

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

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.

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2026-8903

Affected Products

Two-Factor Authentication

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-8903 · Security Note
• https://plugins.trac.wordpress.org/browser/ip-vault-wp-firewall/trunk/includes/admin-settings.php#L14 · Note
• https://plugins.trac.wordpress.org/browser/ip-vault-wp-firewall/trunk/ip-vault.php#L482 · Note
• https://plugins.trac.wordpress.org/browser/ip-vault-wp-firewall/trunk/includes/admin-settings.php#L129 · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/5a58f809-d051-4841-a1da-7bc1cf59e1a2?source=cve · Note