CVE-2026-4293 Kieback & Peter DDC Building Controllers Cross-site Scripting

Medium 5.3 Published Updated

Cross-site scripting in Kieback & Peter DDC building controllers allows attackers to execute JavaScript in victims' browsers, potentially compromising the interface.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-4293?

CVE-2026-4293 is a medium-severity cross-site scripting vulnerability in Kieback & Peter DDC4002, published on 20 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The affected Kieback & Peter DDC building controllers are vulnerable to cross-site scripting, enabling JavaScript to be executed by the victim's browser, which allows the attacker to control the browser.

Weakness: CWE-79

Which versions are affected by CVE-2026-4293?

How do I fix CVE-2026-4293?

No fix has been published for CVE-2026-4293 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-2026-4293 being exploited?

There is no known exploitation of CVE-2026-4293 in the wild and no public exploit code.

Sources

Also known as GHSA-964f-6vjj-5rw5.

Is CVE-2026-4293 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free