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Medium · 5.3 CVE-2025-8349 EUVD-2025-35044GHSA-jqpj-2w79-j7h7

Cross-Site Scripting (XSS) stored in Tawk Live Chat

Published Oct 20, 2025 · Updated Mar 24, 2026 · Assigned by INCIBE

Description

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.

Affected products

VendorProductAffectedFixed
Tawk Live Chat — —

References