5.3

CVE-2026-8474

Possible to run a Cross Site Scripting request on the login API available on Stormshield SNS appliances.

A vulnerability was discovered on Stormshield Network Security 





  *  4.3.0 to 4.3.41, 
  *  4.8.0 to 4.8.15, 
  *  5.0.0 to 5.0.5








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'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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerStormShield
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Produkt StormShield Network Security
Default Statusunaffected
Version <= 4.3.41
Version 4.3.0
Status affected
Version <= 4.8.15
Version 4.8.0
Status affected
Version <= 5.0.5
Version 5.0.0
Status affected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.18% 0.079
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cert@airbus.com 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

https://advisories.stormshield.eu/2026-003/