Vulnerability · Published Sep 26, 2026 · Assigned by Wordfence
CVE-2026-85984miniOrange OTP Login, Verification and SMS Notifications <= 5.5.5 - Unauthenticated Authentication Bypass via 'mo_wp_login_intent' Parameter
Critical 9.8
In plain English
A critical-severity improper authentication in miniOrange OTP Login, Verification and SMS Notifications from cyberlord92. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
The miniOrange OTP Login, Verification and SMS Notifications plugin for WordPress is vulnerable to Authentication Bypass via the mo_wp_login_intent parameter in all versions up to, and including, 5.5.5. This is due to a missing password-intent guard in the skip_pass_fallback-enabled configuration branch of the mo_by_pass_login() function, which treats administrator role membership alone as sufficient authentication whenever the unauthenticated, unverified POST parameter mo_wp_login_intent is submitted with the value otp, causing mo_get_user() to skip wp_authenticate_username_password() and resolve a WP_User purely from a username lookup. This makes it possible for unauthenticated attackers to log in as any existing administrator account by supplying only a known username and an empty password alongside mo_wp_login_intent=otp, with no password or OTP verification required. Exploitation is conditional on a site administrator having simultaneously enabled the following plugin options: WP Login OTP, Login with Only OTP, Allow Users to Login with Username and Password, and Admin OTP Bypass.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| cyberlord92 | miniOrange OTP Login, Verification and SMS Notifications | 0 – through 5.5.5 |
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2895f0c2-41b6-4b11-9865-3bded4402aa9?source=cve
- https://plugins.trac.wordpress.org/browser/miniorange-otp-verification/tags/5.5.5/views/forms/mowploginform.php#L134
- https://plugins.trac.wordpress.org/browser/miniorange-otp-verification/tags/5.5.5/includes/js/loginform.js#L176
- https://plugins.trac.wordpress.org/changeset/3687601/miniorange-otp-verification