AUGUST 24, 2026
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Case File

CVE-2026-31981

MEDIUM · CVSS 5.9 EPSS 0.14% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-09 · Last synced 2026-08-08

CyberRota Analysis

AI-Generated

A stored HTML injection vulnerability exists in the Diagram tab and Graph view, allowing authenticated users with administrative privileges to inject malicious HTML into N2OS configuration data. This can lead to phishing and open redirect attacks when victims view the compromised data, although full XSS exploitation and direct information disclosure are mitigated by existing security measures. Organizations using N2OS should prioritize remediation to protect against potential exploitation by malicious insiders or compromised accounts.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-31981
Severity
MEDIUM
CVSS
5.9
EPSS
0.14%

Original NVD 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.

Related CVEs

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