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Vulnerabilities and Security Researches

Two Factor (2FA) Authentication via Email, CVE-2025-13587

CVE, Research URL

CVE-2025-13587

Published on
Feb 19, 2026
Research Description
The Two Factor (2FA) Authentication via Email plugin for WordPress is vulnerable to Two-Factor Authentication Bypass in versions up to, and including, 1.9.8. This is because the SS88_2FAVE::wp_login() method only enforces the 2FA requirement if the 'token' HTTP GET parameter is undefined, which makes it possible to bypass two-factor authentication by supplying any value in the 'token' parameter during login, including an empty one.
Affected versions
max 1.9.9.
Status
vulnerable