NN-2025:13-01
Stored Cross-Site Scripting (XSS) in Reports in Guardian/CMC before 25.5.0
| Advisory ID | NN-2025:13-01 |
|---|---|
| Topic | Stored Cross-Site Scripting (XSS) in Reports in Guardian/CMC before 25.5.0 |
| CWE Impact | CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') |
| Issue date | 2025-12-18 |
| Affects | Guardian, CMC < v25.5.0 |
| CVE Name(s) | CVE-2025-40892 |
| CVSS Details | 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 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:H |
| CVSS Score | 7.1 (CVSS v4.0) 8.9 (CVSS v3.1) |
| CVE Risk Level | High (CVSS v4.0) High (CVSS v3.1) |
| Risk Level for Nozomi customers | High |
Summary
A Stored Cross-Site Scripting vulnerability was discovered in the Reports functionality due to improper validation of an input parameter.
Impact
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.
Affected Products
Guardian, CMC < v25.5.0
Workarounds and Mitigations
Use internal firewall features to limit access to the web management interface. Review all accounts with access to it and delete unnecessary ones. Review existing report templates.
Solutions
Upgrade to v25.5.0 or later.
Modification History
Related Links
Acknowledgements
We thank the following parties for their efforts:
- Stefano Libero of Nozomi Networks Product Security team for finding this issue during an internal investigation
Contact
Nozomi Networks Product Security team can be reached at prodsec@nozominetworks.com.More contact details on the PSIRT page.