Vulnerability library
Security checkMarch 19, 2026

NotChatbot WebChat has a stored cross-site scripting (XSS) vulnerability

Understand the exposure, see the recommended fix, and check whether your own website has related weaknesses.

Check your website

Find this and other vulnerabilities with a free scan.

Your scan runs on your computer. No account required.

Description

A stored cross-site scripting (XSS) vulnerability exists in the NotChatbot WebChat widget thru 1.4.4. User-supplied input is not properly sanitized before being stored and rendered in the chat conversation history. This allows an attacker to inject arbitrary JavaScript code which is executed when the chat history is reloaded.

Recommendation

No fix is available yet. Followings are affected versions:

  • <= 1.5.0

References

Could your website be exposed too?

SmartScanner can check your website for NotChatbot WebChat has a stored cross-site scripting (XSS) vulnerability and gives you actionable findings to investigate.

Start a free scan

Related Issues

See something that needs correcting? Let us knowUpdated March 19, 2026