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CVE-2026-23760

Estado: AnalizadaCrítica (9.3)⚠ Explotación activa

SmarterTools SmarterMail versions prior to build 9511 contain an authentication bypass vulnerability in the password reset API. The force-reset-password endpoint permits anonymous requests and fails to verify the existing password or a reset token when resetting system administrator accounts. An unauthenticated attacker can supply a target administrator username and a new password to reset the account, resulting in full administrative compromise of the SmarterMail instance. NOTE: SmarterMail system administrator privileges grant the ability to execute operating system commands via built-in management functionality, effectively providing administrative (SYSTEM or root) access on the underlying host.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

CISA KEV — explotada activamente

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

API de reinicio de contraseña sin autenticación (CWE-288) permite acceso anónimo como administrador (T1078), y las credenciales administrativas de SmarterMail permiten ejecución de comandos del SO (T1059).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementApplication Developer GuidanceActive Directory ConfigurationVulnerability ScanningUser TrainingUser Account Management

Tecnologías afectadas (1)

Smartertools — Smartermail

CWE

Referencias

JSON original (NVD)

Mostrar
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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      "lang": "en",
      "value": "SmarterTools SmarterMail versions prior to build 9511 contain an authentication bypass vulnerability in the password reset API. The force-reset-password endpoint permits anonymous requests and fails to verify the existing password or a reset token when resetting system administrator accounts. An unauthenticated attacker can supply a target administrator username and a new password to reset the account, resulting in full administrative compromise of the SmarterMail instance. NOTE: SmarterMail system administrator privileges grant the ability to execute operating system commands via built-in management functionality, effectively providing administrative (SYSTEM or root) access on the underlying host."
    },
    {
      "lang": "es",
      "value": "Las versiones de SmarterTools SmarterMail anteriores a la compilación 9511 contienen una vulnerabilidad de omisión de autenticación en la API de restablecimiento de contraseña. El endpoint force-reset-password permite solicitudes anónimas y no verifica la contraseña existente o un token de restablecimiento al restablecer cuentas de administrador del sistema. Un atacante no autenticado puede proporcionar un nombre de usuario de administrador objetivo y una nueva contraseña para restablecer la cuenta, lo que resulta en un compromiso de administración total de la instancia de SmarterMail. NOTA: Los privilegios de administrador del sistema de SmarterMail otorgan la capacidad de ejecutar comandos del sistema operativo a través de la funcionalidad de gestión incorporada, proporcionando efectivamente acceso de administrador (SYSTEM o root) en el host subyacente."
    }
  ],
  "lastModified": "2026-08-04T05:16:38.160",
  "cisaActionDue": "2026-02-16",
  "cisaExploitAdd": "2026-01-26",
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  "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
  "cisaVulnerabilityName": "SmarterTools SmarterMail Authentication Bypass Using an Alternate Path or Channel Vulnerability"
}