CVE-2026-102258 Cross-site scripting in SMA1000
Authenticated administrators can inject and execute arbitrary JavaScript in the SMA1000 Appliance Management Console, potentially compromising the management interface.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-102258?
CVE-2026-102258 is a medium-severity cross-site scripting vulnerability in SonicWall SMA1000, published on 7 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Post-authentication Stored Cross-Site Scripting (XSS) vulnerability has been identified in the SMA1000 Appliance Management Console (AMC) which in specific conditions could potentially enable a remote authenticated attacker as administrator to store and potentially execute arbitrary JavaScript code in the Appliance Management Console (AMC).
Weakness: CWE-79
Which versions are affected by CVE-2026-102258?
How do I fix CVE-2026-102258?
No fix has been published for CVE-2026-102258 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-2026-102258 being exploited?
There is no known exploitation of CVE-2026-102258 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-mhvj-2r3g-vr93.