CVE-2026-30048

MEDIUM EPSS 15.9%
Published Mar 18, 20263mo ago · Modified Apr 27, 20262mo ago
5.4 CVSS 3.1
Medium
Find Similar
Published Mar 18, 2026 3mo ago
Last Modified Apr 27, 2026 2mo ago

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. 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 Details

Base Score
5.4
Exploitability
2.3
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
15.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

References 4

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.