CVE-2025-40598 Cross-site scripting in SMA 100 Series
Remote unauthenticated attackers can execute arbitrary JavaScript via reflected XSS in the SMA 100 web interface, potentially compromising user sessions.
- 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-2025-40598?
CVE-2025-40598 is a medium-severity cross-site scripting vulnerability in SonicWall SMA 100 Series, published on 23 Jul 2025. 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
A Reflected cross-site scripting (XSS) vulnerability exists in the SMA100 series web interface, allowing a remote unauthenticated attacker to potentially execute arbitrary JavaScript code.
Weakness: CWE-79
Which versions are affected by CVE-2025-40598?
It affects 3 products.
Products include Sonicwall Sma 210 Firmware, Sonicwall Sma 410 Firmware, Sonicwall Sma 500v Firmware.
How do I fix CVE-2025-40598?
No fix has been published for CVE-2025-40598 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-2025-40598 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-40598 exists.
Other vulnerabilities in SonicWall SMA 100 Series
Sources
Also known as GHSA-x64w-w449-jx7q.