CVE-2025-40901

A Stored HTML Injection vulnerability was discovered in the Credentials Manager functionality due to improper validation of an input parameter. An authenticated user with administrative privileges can define a malicious identity containing HTML tags. When a victim attempts to delete the affected identity, 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.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.7 / Impact : 3.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://security.nozominetworks.com/NN-2026:4-01	Vendor Advisory
https://cert-portal.siemens.com/productcert/html/ssa-827968.html

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:nozominetworks:cmc::::::::
	cpe:2.3:a:nozominetworks:guardian::::::::

History

14 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) Se descubrió una vulnerabilidad de inyección HTML almacenada en la funcionalidad del Gestor de Credenciales debido a una validación incorrecta de un parámetro de entrada. Un usuario autenticado con privilegios administrativos puede definir una identidad maliciosa que contiene etiquetas HTML. Cuando una víctima intenta eliminar la identidad afectada, el HTML inyectado se renderiza en su navegador, lo que permite phishing y posiblemente ataques de redirección abierta. La explotación completa de XSS y la revelación directa de información se evitan mediante la validación de entrada existente y la configuración de la Política de Seguridad de Contenido.

Information

Published : 2026-05-19 14:16

Updated : 2026-10-14 13:10

NVD link : CVE-2025-40901

Mitre link : CVE-2025-40901

CVE.ORG link : CVE-2025-40901

JSON object : View

Products Affected

nozominetworks

guardian
cmc

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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