# miniOrange OTP Login, Verification and SMS Notifications <= 5.5.7 - Unauthenticated Authentication Bypass via Login OTP Phone Number

- **ID:** WPSEC-2026-0719
- **Plugin:** miniOrange OTP Login, Verification and SMS Notifications (`miniorange-otp-verification`), https://wordpress.org/plugins/miniorange-otp-verification/
- **Affected versions:** all versions before 5.5.8
- **Fixed in:** 5.5.8 (Update to 5.5.8 or later.)
- **Severity:** Critical 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
- **Weakness:** CWE-287
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-10-10)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/miniorange-otp-verification
- **Fix released:** 2026-10-08
- **Published:** 2026-10-10
- **URL:** https://wpsec.com/vuln/WPSEC-2026-0719/

## Description

The miniOrange OTP Login, Verification and SMS Notifications plugin for WordPress is vulnerable to Authentication Bypass via the phone-based login OTP AJAX handler in all versions up to, and including, 5.5.7. This is due to the plugin sending the login OTP to a phone number supplied in the request instead of the phone number registered to the user bound to the login session. This makes it possible for unauthenticated attackers to receive a target user's login OTP on a phone they control, verify it, and log in as that user, including administrators.

## References

- https://wpsec.com/vuln/WPSEC-2026-0719/
- https://plugins.svn.wordpress.org/miniorange-otp-verification/tags/5.5.8/
- https://wordpress.org/plugins/miniorange-otp-verification/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-0719/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.