CVE-2025-40890

High

Description

A Stored Cross-Site Scripting vulnerability was discovered in the Dashboards functionality due to improper validation of an input parameter. An authenticated low-privilege user can craft a malicious dashboard containing a JavaScript payload and share it with victim users, or a victim can be socially engineered to import a malicious dashboard template. When the victim views or imports the dashboard, the XSS executes in their browser context, allowing the attacker to perform unauthorized actions as the victim, such as modify application data, disrupt application availability, and access limited sensitive information.

SeverityHigh
CVSS7.9
Exploit probability—
ProductGuardian
PublishedNov 25, 2025
First seenNov 25, 2025

How to fix

Update
  • Nozomi Networks Guardian25.4.0 or later
  • Nozomi Networks CMC25.4.0 or later

Affected products

ProductAffected versionsFixed in
Nozomi Networks Guardianv < 25.4.025.4.0
Nozomi Networks CMCv < 25.4.025.4.0

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