CVE-2025-40892 HIGH

CVE-2025-40892: Stored Cross-Site Scripting (XSS) in Reports in Guardian/CMC before 25.5.0

Vendor Nozomi Networks
Product Guardian
Weakness CWE-79 · XSS
Published December 18, 2025
Last update June 9, 2026

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:H/VA:H/SC:L/SI:L/SA:L

What the vulnerability does

01Description

A Stored Cross-Site Scripting vulnerability was discovered in the Reports functionality due to improper validation of an input parameter. An authenticated user with report privileges can define a malicious report containing a JavaScript payload, or a victim can be socially engineered to import a malicious report template. When the victim views or imports the report, 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.

Key dates

02Disclosure timeline

December 18, 2025 CVE published
June 9, 2026 Record updated