Vulnerability · Published Jun 1, 2026 · Assigned by airbus
CVE-2026-8474Possible to run a Cross Site Scripting request on the login API available on Stormshield SNS appliances.
Medium 5.3
In plain English
A medium-severity cross-site scripting in StormShield Network Security from StormShield. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| StormShield | StormShield Network Security | 4.3.0 – through 4.3.414.8.0 – through 4.8.155.0.0 – through 5.0.5 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N