CVE-2019-25409 Comodo Dome Firewall 2.7.0 Reflected Cross-Site Scripting via routing

Medium 5.1 Published 19 Feb 2026 Updated 24 May 2026

Attackers can inject malicious scripts via the routing destination parameter, allowing arbitrary JavaScript execution in user browsers.

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-2019-25409?

CVE-2019-25409 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 manipulating the destination parameter. Attackers can send POST requests to the routing endpoint with script payloads in the destination parameter to execute arbitrary JavaScript in users' browsers.

Weakness: CWE-79

Which versions are affected by CVE-2019-25409?

It affects 1 product.

Products include Comodo Dome Firewall.

How do I fix CVE-2019-25409?

No fix has been published for CVE-2019-25409 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-2019-25409 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25409 exists.

Sources

Also known as GHSA-4gmh-q9c8-hqhf.