CVE-2026-8760

The Login with OTP plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 1.6. This is due to an incomplete fix for CVE-2024-11178: the rate-limit/lockout check added to `otpl_login_action()` was placed only inside the OTP-generation branch and is never evaluated on the OTP-validation branch, and the generated 6-digit OTP additionally has no expiration. This makes it possible for unauthenticated attackers to brute-force the 900,000-value OTP space for any user account (including administrators) and obtain a valid `wp_set_auth_cookie()` session, leading to full site compromise.

• CWE-307

• https://nvd.nist.gov/vuln/detail/CVE-2024-11178
• https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L361
• https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L419
• https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L424
• https://plugins.trac.wordpress.org/browser/otp-login/tags/1.6/lib/otpl-class.php#L427
• https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L361
• https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L419
• https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L424
• https://plugins.trac.wordpress.org/browser/otp-login/trunk/lib/otpl-class.php#L427
• https://www.wordfence.com/threat-intel/vulnerabilities/id/ad22cb24-e6a0-456f-afe8-88a39acd97d3?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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