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CVE-2019-18426

Estado: AnalizadaAlta (8.2)⚠ Explotación activa

A vulnerability in WhatsApp Desktop versions prior to 0.3.9309 when paired with WhatsApp for iPhone versions prior to 2.20.10 allows cross-site scripting and local file reading. Exploiting the vulnerability requires the victim to click a link preview from a specially crafted text message.

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.

XSS en previsualizaciones (T1189 por drive-by) que requiere click del usuario (UI:R). Permite lectura local (C:H, CWE-79) y ejecución en contexto web (I:L). AV:N, S:C confirma impacto en navegador/aplicación.

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

Restrict Web-Based ContentUser TrainingExecution PreventionBehavior Prevention on EndpointDisable or Remove Feature or ProgramApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Whatsapp — Whatsapp

CWE

Referencias

JSON original (NVD)

Mostrar
{
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      "value": "A vulnerability in WhatsApp Desktop versions prior to 0.3.9309 when paired with WhatsApp for iPhone versions prior to 2.20.10 allows cross-site scripting and local file reading. Exploiting the vulnerability requires the victim to click a link preview from a specially crafted text message."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en WhatsApp Desktop versiones anteriores a 0.3.9309, cuando se combina con WhatsApp para iPhone versiones anteriores a 2.20.10, permite ataques de tipo cross-site scripting y la lectura de archivos locales. Explotar la vulnerabilidad requiere que la víctima haga clic en la vista previa de un enlace de mensaje de texto especialmente diseñado."
    }
  ],
  "lastModified": "2026-06-17T02:25:01.227",
  "cisaActionDue": "2022-06-13",
  "cisaExploitAdd": "2022-05-23",
  "configurations": [
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  "cisaRequiredAction": "Apply updates per vendor instructions.",
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}