HOMEVULNERABILITIESCVE-2026-30048
MEDIUM

CVE-2026-30048

Published: March 18, 2026· Updated: Mar 19, 2026

5.4
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:8.4th

Official 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.

NVD Source

Technical Analysis

CVE-2026-30048 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionRequired
ScopeChanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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All References (4)

Quick Facts

CVE IDCVE-2026-30048
CVSS Score5.4 / 10
SeverityMEDIUM
CISA KEVNo
EPSS (30d)0.03%
PublishedMar 18, 2026

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-30048 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.