XSS in Nozomi Networks Cmc
CVE-2025-40899
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.003 (21.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.9 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:H.
Affected products
- Nozomi Networks Cmc — versions 0
- Nozomi Networks Guardian — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-40899?
- CVE-2025-40899 is a high-severity vulnerability in Nozomi Networks Cmc, classified under Cross-site Scripting. CVSS score: 8.9/10. Published 2026-04-15.
- How severe is CVE-2025-40899?
- High severity. CVSS v3 base score is 8.9 out of 10.