CVE-2026-14466 Possible XSS in the SNS web administration panel
An administrator can inject malicious scripts into group comments, leading to stored XSS in the Stormshield Network Security web administration panel.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-14466?
CVE-2026-14466 is a medium-severity cross-site scripting vulnerability in Stormshield Network Security, published on 4 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
It’s possible to run a stored XSS in Stormshield’s web administration panel.
To exploit this vulnerability, a SNS administrator with appropriate permissions must inject some malicious script in a group’s comments in the webservices administration interface.
Weakness: CWE-79
Which versions are affected by CVE-2026-14466?
How do I fix CVE-2026-14466?
No fix has been published for CVE-2026-14466 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-14466 being exploited?
There is no known exploitation of CVE-2026-14466 in the wild and no public exploit code.
Sources
Also known as GHSA-w9vr-4cw4-q9wq.