Vulnerability · Published May 20, 2026 · Assigned by icscert
CVE-2026-4293Kieback & Peter DDC Building Controllers Cross-site Scripting
Medium 5.3
In plain English
A medium-severity cross-site scripting in DDC4002 from Kieback & Peter. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 80.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Kieback & Peter | DDC4002 | 0 – through 1.12.14 |
| Kieback & Peter | DDC4100 | 0 – through 1.12.14 |
| Kieback & Peter | DDC4200 | 0 – through 1.12.14 |
| Kieback & Peter | DDC4200-L | 0 – through 1.12.14 |
| Kieback & Peter | DDC4400 | 0 – through 1.12.14 |
| Kieback & Peter | DDC4002e | 0 – through 1.23.4 |
| Kieback & Peter | DDC4200e | 0 – through 1.23.4 |
| Kieback & Peter | DDC4400e | 0 – through 1.23.4 |
| Kieback & Peter | DDC4020e | 0 – through 1.23.4 |
| Kieback & Peter | DDC4040e | 0 – through 1.23.4 |
| Kieback & Peter | DDC520 | 0 – through 1.24.1 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N