CVE-2025-8349CWE-79cross-site-scripting

CVE-2025-8349

published October 20, 2025

CVSS

5.3

EPSS

Percentile

44.2

In the wild

Unconfirmed

What it is

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.

The record

Technical detail

CVSS: 5.3 · NONE
CVSS v4.0: Not supplied
EPSS: 0.00533 · 44.2th percentile
Weakness: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published: 2025-10-20T14:15Z

References (1)

https://www.incibe.es/en/incibe-cert/notices/aviso/cross-site-scripting-xss-stored-tawk-live-chat · [email protected]

EPSS history

Timeline

20 OCT 09:56Z
Cross-Site Scripting (XSS) stored in Tawk Live Chat
cvelistv5