CVE-2019-25408 Comodo Dome Firewall 2.7.0 Reflected Cross-Site Scripting via netwizard2

Medium 5.1 Published 19 Feb 2026 Updated 24 May 2026

Attackers can inject malicious scripts via the netmask_addr parameter in Comodo Dome Firewall, 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-2019-25408?

CVE-2019-25408 is a medium-severity cross-site scripting vulnerability in Comodo Dome Firewall, published on 19 Feb 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

Comodo Dome Firewall 2.7.0 contains a reflected cross-site scripting vulnerability that allows attackers to inject malicious scripts by submitting crafted input to the netmask_addr parameter. Attackers can send POST requests to the netwizard2 endpoint with script payloads in the netmask_addr parameter to execute arbitrary JavaScript in users' browsers.

Weakness: CWE-79

Which versions are affected by CVE-2019-25408?

It affects 1 product.

Products include Comodo Dome Firewall.

How do I fix CVE-2019-25408?

No fix has been published for CVE-2019-25408 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-2019-25408 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25408 exists.

Sources

Also known as GHSA-p5qh-w693-vjqf.