CVE-2019-25400 IPFire 2.21 Core Update 127 Multiple XSS via fwhosts.cgi

Medium 4.8 Published Updated

Attackers can inject malicious scripts via multiple parameters in fwhosts.cgi, executing arbitrary JavaScript in authenticated users' browsers.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2019-25400?

CVE-2019-25400 is a medium-severity cross-site scripting vulnerability in IPFire, published on 18 Feb 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

IPFire 2.21 Core Update 127 contains multiple reflected cross-site scripting vulnerabilities in the fwhosts.cgi script that allow attackers to inject malicious scripts through multiple parameters including HOSTNAME, IP, SUBNET, NETREMARK, HOSTREMARK, newhost, grp_name, remark, SRV_NAME, SRV_PORT, SRVGRP_NAME, SRVGRP_REMARK, and updatesrvgrp. Attackers can submit POST requests with script payloads in these parameters to execute arbitrary JavaScript in the context of authenticated users' browsers.

Weakness: CWE-79

Which versions are affected by CVE-2019-25400?

It affects 1 product.

Products include Ipfire Ipfire.

How do I fix CVE-2019-25400?

No fix has been published for CVE-2019-25400 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-2019-25400 being exploited?

There is no known exploitation of CVE-2019-25400 in the wild and no public exploit code.

Sources

Also known as GHSA-43xr-qfv7-4j2q.

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