CVE-2025-8349 Cross-Site Scripting (XSS) stored in Tawk Live Chat
Attackers can execute JavaScript in victims' browsers via malicious PDFs in Tawk Live Chat, potentially stealing session cookies or performing actions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-8349?
CVE-2025-8349 is a medium-severity cross-site scripting vulnerability in Tawk Live Chat, published on 20 Oct 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2025-8349?
How do I fix CVE-2025-8349?
No fix has been published for CVE-2025-8349 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-8349 being exploited?
There is no known exploitation of CVE-2025-8349 in the wild and no public exploit code.
Sources
Also known as GHSA-jqpj-2w79-j7h7.