TI-2025-27293 Aliases CVE-2025-40899 GHSA-28p4-5j5m-924h

Stored Cross-Site Scripting (XSS) in Assets and Nodes in Guardian/CMC before 26.0.0

LOW 33CWE-79Published 2026-04-15 · Updated 2026-08-11

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Passive
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

A Stored Cross-Site Scripting vulnerability was discovered in the Assets and Nodes functionality due to improper validation of an input parameter. An authenticated user with custom fields privileges can define a malicious custom field containing a JavaScript payload. When the victim views the Assets or Nodes pages, 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00288 21st percentileScored 2026-11-07

Fix Fixed Guardian (Nozomi Networks): 26.0.0CMC (Nozomi Networks): 26.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Nozomi Networks	Guardian	before 26.0.0	26.0.0	Patch available	CNA
Nozomi Networks	CMC	before 26.0.0	26.0.0	Patch available	CNA

Guardian VendorNozomi Networks Affected before 26.0.0 Fixed in 26.0.0 Patch available CNA
CMC VendorNozomi Networks Affected before 26.0.0 Fixed in 26.0.0 Patch available CNA

Remediation

Fix · CNA Guardian (Nozomi Networks) Fixed in 26.0.0
Fix · CNA CMC (Nozomi Networks) Fixed in 26.0.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-04-15
Nozomi Networks CMC, Guardian 26.0.0
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2025-27291 Incorrect authorization for Threat Intelligence in Guardian/CMC before 26.0.0Priority LOW 34
Show all 2 records →

Timeline

2026-10-02 Threatist record created from CVE-2025-40899
2026-10-03 Alias added: GHSA-28p4-5j5m-924h

References

Other 1

https://security.nozominetworks.com/NN-2026:2-01

TI-2022-00470 Authenticated RCE on project configuration import in Guardian/CMC before 22.0.0 CVSS 4.0HIGH 8.6
TI-2026-24526 DoS through oversized audit log entries in Guardian/CMC before 26.2.0 CVSS 4.0HIGH 8.7
TI-2023-15926 DoS on IDS parsing of malformed asset fields in Guardian/CMC >= 22.6.0 before 22.6.3 and 23.1.0 CVSS 4.0HIGH 8.2
TI-2023-13657 SQL Injection on IDS parsing of malformed asset fields in Guardian/CMC >= 22.6.0 before 22.6.3 and 23.1.0 CVSS 4.0CRITICAL 9.2
TI-2024-00196 DoS on IDS parsing of malformed Radius packets in Guardian before 23.4.1 CVSS 4.0HIGH 8.2
TI-2021-08402 Authenticated command injection when changing date settings or hostname in Guardian/CMC before 20.0.7.4 CVSS 4.0HIGH 8.6

See all 64 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences