CVE-2019-6835 Cross-site scripting in U.motion Server

Medium 5.4 Published 17 Sep 2019 Updated 4 Aug 2024

An attacker can inject client-side scripts into the U.motion Server web interface, potentially executing malicious code in the victim's browser.

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-2019-6835?

CVE-2019-6835 is a medium-severity cross-site scripting vulnerability in Schneider Electric SE U.motion Server, published on 17 Sep 2019. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A Cross-Site Scripting (XSS) CWE-79 vulnerability exists in U.motion Server (MEG6501-0001 - U.motion KNX server, MEG6501-0002 - U.motion KNX Server Plus, MEG6260-0410 - U.motion KNX Server Plus, Touch 10, MEG6260-0415 - U.motion KNX Server Plus, Touch 15), which could allow an attacker to inject client-side script when a user visits a web page.

Weakness: CWE-79

Which versions are affected by CVE-2019-6835?

It affects 4 products.

Products include Schneider-Electric Meg6260-0410 Firmware, Schneider-Electric Meg6260-0415 Firmware, Schneider-Electric Meg6501-0001 Firmware, Schneider-Electric Meg6501-0002 Firmware.

How do I fix CVE-2019-6835?

No fix has been published for CVE-2019-6835 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-2019-6835 being exploited?

There is no known exploitation of CVE-2019-6835 in the wild and no public exploit code.

Sources

Also known as GHSA-4ghq-p9mc-vcvw.