VULNERABILITY INTELLIGENCE

CVE-2026-31981

CVSS score5.9 MEDIUM
EPSS probability0.25%
CISA KEVNot currently listed
Published2026-07-09
Last modified2026-08-11
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L

Description

A Stored HTML Injection vulnerability was discovered in the Diagram tab and Graph view due to a shared input validation function being insufficiently restrictive. An authenticated user with administrative privileges can inject malicious HTML tags into N2OS configuration data through multiple input vectors. When a victim views the affected data in the Diagram tab and Graph view, the injected HTML renders in their browser, enabling phishing and possibly open redirect attacks. Full XSS exploitation and direct information disclosure are prevented by the existing input validation and Content Security Policy configuration.

Weakness classification

  • prodsec@nozominetworks.com: CWE-79

Primary references