Medium severity5.4NVD Advisory· Published Mar 18, 2026· Updated Apr 27, 2026

CVE-2026-30048

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.

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LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
@developer.notchatbot/webchatnpm	<= 1.5.0	—

Affected products

ghsa-coords
pkg:npm/%40developer.notchatbot/webchat
Range: <= 1.5.0

Patches

Vulnerability mechanics

References

github.com/advisories/GHSA-w3vx-52j6-9fjpghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2026-30048ghsaADVISORY
app.unpkg.com/@developer.notchatbot/webchat@1.4.4nvdWEB
gist.github.com/0xN4no/0601f398942a29259d217ea650f694fenvdWEB
www.npmjs.com/package/@developer.notchatbot/webchatnvdWEB

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