CVE-2026-30048

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. The issue is reproducible across multiple independent implementations of the widget, indicating that the vulnerability resides in the product itself rather than in a specific website configuration.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://app.unpkg.com/@developer.notchatbot/webchat@1.4.4
https://gist.github.com/0xN4no/0601f398942a29259d217ea650f694fe
https://github.com/0xN4no/CVE-2026-30048
https://www.npmjs.com/package/@developer.notchatbot/webchat

Configurations

No configuration.

History

No history.

Information

Published : 2026-03-18 18:16

Updated : 2026-06-17 10:32

NVD link : CVE-2026-30048

Mitre link : CVE-2026-30048

CVE.ORG link : CVE-2026-30048

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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