Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2026-8474

Severity CVSS v4.0:
Pending analysis
Type:
CWE-79 Cross-Site Scripting (XSS)
Publication date:
01/06/2026
Last modified:
01/06/2026

Description

A vulnerability was discovered on Stormshield Network Security <br /> <br /> <br /> <br /> <br /> <br /> * 4.3.0 to 4.3.41, <br /> * 4.8.0 to 4.8.15, <br /> * 5.0.0 to 5.0.5<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> It is possible to execute a reflected XSS attack on the login API available on Stormshield SNS appliance by executing a script on the victim&amp;#39;s machine. The risks include the theft of cookies or other sensitive data, as well as the modification of page behavior, for example, by redirecting the victim to malicious websites.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): Low
Availability (A): None

Base Score 3.x
5.30
Severity 3.x
MEDIUM

References to Advisories, Solutions, and Tools