CVE-2026-8474
Possible to run a Cross Site Scripting request on the login API available on Stormshield SNS appliances.
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 5.3EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
01 Jun 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected products
StormShield · StormShield Network SecurityWant to know if your infrastructure is exposed to this?
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