CVE-2025-40892
Stored Cross-Site Scripting (XSS) in Reports in Guardian/CMC before 25.5.0
CVSS Score
8.9
EPSS Score
0.1%
EPSS Percentile
16th
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.
| CWE | CWE-79 |
| Vendor | nozomi networks |
| Product | guardian |
| Published | Dec 18, 2025 |
| Last Updated | Apr 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
High
Availability
High
Affected Versions
Nozomi Networks / Guardian
0 < 25.5.0
Nozomi Networks / CMC
0 < 25.5.0
References
Credits
This issue was found by Stefano Libero of Nozomi Networks Product Security team during an internal investigation.