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CVE-2020-3345

Estado: ModificadaMedia (4.3)—

A vulnerability in certain web pages of Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to modify a web page in the context of a browser. The vulnerability is due to improper checks on parameter values within affected pages. An attacker could exploit this vulnerability by persuading a user to follow a crafted link that is designed to pass HTML code into an affected parameter. A successful exploit could allow the attacker to alter the contents of a web page to redirect the user to potentially malicious web sites, or the attacker could leverage this vulnerability to conduct further client-side attacks.

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).

Tecnologías afectadas (2)

CWE

Referencias

JSON original (NVD)

Mostrar
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  "published": "2020-07-16T18:15:17.580",
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    },
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      "lang": "es",
      "value": "Una vulnerabilidad en determinadas páginas web de Cisco Webex Meetings y Cisco Webex Meetings Server podría permitir a un atacante remoto no autenticado modificar una página web en el contexto de un navegador. La vulnerabilidad es debido a comprobaciones inapropiadas de los valores de los parámetros dentro de las páginas afectadas. Un atacante podría explotar esta vulnerabilidad al persuadir a un usuario para que siga un enlace diseñado que está diseñado para pasar código HTML a un parámetro afectado. Una explotación con éxito podría permitir a un atacante alterar el contenido de una página web para redireccionar al usuario a sitios web potencialmente maliciosos, o el atacante podría explotar esta vulnerabilidad para conducir más ataques del lado del cliente"
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  "lastModified": "2026-06-17T03:18:02.463",
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