OTP Login & Register Woocommerce <= 2.7.2 - Unauthenticated Authentication Bypass via Brute Force
The OTP Login & Register Woocommerce plugin for WordPress is vulnerable to Authentication Bypass via OTP Brute Force in all versions up to, and including, 2.7.2. The vulnerability exists because the OTP rate-limit attempt counter in process_otp_form is keyed exclusively on the attacker-controlled xoo_ml_user_ip_data cookie's ip_address field, allowing unlimited counter resets by simply rotating the cookie, while the OTP itself is generated with PHP's non-cryptographic rand() function over a default space of only 9,000 possible values (1000–9999), and both the OTP issuance endpoint (xoo_ml_login_with_otp) and verification endpoint (xoo_ml_otp_form_submit) are registered as unauthenticated wp_ajax_nopriv actions with no nonce or capability checks. This makes it possible for unauthenticated attackers to brute-force the OTP for any registered account and obtain a full WordPress authentication session — including for administrator accounts — via wp_set_auth_cookie() in login_user_with_otp(). Exploitation requires the attacker to know the target user's registered phone number, which is used to trigger OTP issuance via the unauthenticated xoo_ml_login_with_otp endpoint.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Plugin de WordPress | OTP Login & Register Woocommerce | <= 2.7.2 | 2.7.3 |
Referencias
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N- Debilidad (CWE)
CWE-434- Plataforma
- WordPress
- Paquete
OTP Login & Register Woocommerce- Publicada
- 10.09.2026
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
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Historial de vulnerabilidades: OTP Login & Register Woocommerce
Todas las vulnerabilidades publicadas de este paquete (Plugin de WordPress), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 5
- Primera → última
- 05.2022 09.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 2
- Media 3
Divulgaciones por año
- 2022: 1
- 2023: 1
- 2024: 1
- 2025: 0
- 2026: 2
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OTP Login & Register Woocommerce <= 2.7.2 - Unauthenticated Authentication Bypass via Brute Force esta entrada
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