Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2025-8349

Gravedad CVSS v4.0:
MEDIA
Tipo:
CWE-79 Neutralización incorrecta de la entrada durante la generación de la página web (Cross-site Scripting)
Fecha de publicación:
20/10/2025
Última modificación:
21/10/2025

Descripción

*** Pendiente de traducción *** Cross-site Scripting (XSS) stored vulnerability in Tawk Live Chat. This vulnerability allows an attacker to execute JavaScript code in the victim's browser by uploading a malicious PDF with JavaScript payload through the chatbot. The PDF is stored by the application and subsequently displayed without proper sanitisation when other users access it. This vulnerability can be exploited to steal sensitive user data, such as session cookies, or to perform actions on behalf of the user.