What the vulnerability does
01Description
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.
Explanation of Vulnerability in Simple Terms
02Summary
The Two-Factor Authentication plugin for youtag contains a cross-site request forgery (CSRF) vulnerability in versions 2.1 and earlier. An attacker can craft a malicious webpage that, when visited by a logged-in site administrator, performs unwanted actions on the site without their knowledge. The vulnerability requires user interaction but does not require authentication to set up the attack.
What an attacker can do
03Attacker Capabilities
Trick a logged-in admin into performing unwanted actions on the site via a malicious webpage.
Potential impact on your site
04Site Impact
Admins could unknowingly change settings or perform actions if tricked into visiting a malicious link.
Conditions required to exploit
05Prerequisites
Admin must visit attacker-controlled webpage while logged into the site.
Key dates
06Disclosure timeline
May 27, 2026
CVE published
May 27, 2026
Record updated
