Vulnerability · Published May 27, 2026 · Assigned by Wordfence

CVE-2026-8903Two-factor authentication (formerly IP Vault) <= 2.1 - Cross-Site Request Forgery to Settings Update

Medium 4.3

In plain English

A medium-severity cross-site request forgery in Two-factor authentication (formerly IP Vault) from youtag. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.1%top 96.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
youtag	Two-factor authentication (formerly IP Vault)	0 – through 2.1

Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

In plain English

Official description

Affected products (as reported)

References