VDB-364896 · CVE-2026-4293 · icsa-26-139-05

Kieback & Peter DDC520 up to 1.12.14 cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.7	$0-$5k	0.70

Summaryinfo

A vulnerability classified as problematic was found in Kieback & Peter DDC4002, DDC4100, DDC4200, DDC4200-L, DDC4400, DDC4002e, DDC4200e, DDC4400e, DDC4020e, DDC4040e and DDC520 up to 1.12.14. This issue affects some unknown processing. The manipulation results in cross site scripting. This vulnerability is identified as CVE-2026-4293. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in Kieback & Peter DDC4002, DDC4100, DDC4200, DDC4200-L, DDC4400, DDC4002e, DDC4200e, DDC4400e, DDC4020e, DDC4040e and DDC520 up to 1.12.14. Affected is an unknown function. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

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.

The weakness was released by Maximilian Hildebrand as icsa-26-139-05. The advisory is shared for download at cisa.gov. This vulnerability is traded as CVE-2026-4293 since 03/16/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Kieback & Peter

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.3
VulDB Temp Score: 4.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector (icscert): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/16/2026 CVE reserved
05/20/2026 +64 days Advisory disclosed
05/20/2026 +0 days VulDB entry created
07/23/2026 +64 days VulDB entry last update

Sourcesinfo

Advisory: icsa-26-139-05
Researcher: Maximilian Hildebrand
Status: Not defined

CVE: CVE-2026-4293 (🔒)
GCVE (CVE): GCVE-0-2026-4293
GCVE (VulDB): GCVE-100-364896

Entryinfo

Created: 05/20/2026 18:40
Updated: 07/23/2026 17:16
Changes: 05/20/2026 18:40 (63), 07/23/2026 17:16 (1)
Complete: 🔍
Cache ID: 216::103