CVE-2022-22812 Cross-site scripting in spaceLYnk (V2.6.2 and prior), Wiser for KNX (formerly homeLYnk) (V2.6.2 and prior), fellerLYnk (V2.6.2 and prior)

Medium 6.1 Published 9 Feb 2022 Updated 3 Aug 2024

Attackers can inject malicious JavaScript into Schneider Electric KNX gateways to compromise user web sessions and execute arbitrary code in the browser.

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-2022-22812?

CVE-2022-22812 is a medium-severity cross-site scripting vulnerability in spaceLYnk (V2.6.2 and prior), Wiser for KNX (formerly homeLYnk) (V2.6.2 and prior), fellerLYnk (V2.6.2 and prior), published on 9 Feb 2022. 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 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability exists that could cause a web session compromise when an attacker injects and then executes arbitrary malicious JavaScript code inside the target browser. Affected Product: spaceLYnk (V2.6.2 and prior), Wiser for KNX (formerly homeLYnk) (V2.6.2 and prior), fellerLYnk (V2.6.2 and prior)

Weakness: CWE-79

Which versions are affected by CVE-2022-22812?

It affects 3 products.

Products include Schneider-Electric Fellerlynk Firmware, Schneider-Electric Spacelynk Firmware, Schneider-Electric Wiser for Knx Firmware.

How do I fix CVE-2022-22812?

No fix has been published for CVE-2022-22812 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-2022-22812 being exploited?

There is no known exploitation of CVE-2022-22812 in the wild and no public exploit code.

Sources

Also known as GHSA-f5p7-gfff-wrgp.