CVE-2026-1001: Domoticz < 2026.1 Stored XSS via Hardware Configuration Endpoint

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-25 · updated 2026-07-14
Weakness: CWE-79

Description

Domoticz versions prior to 2026.1 contain a stored cross-site scripting vulnerability in the Add Hardware and rename device functionality of the web interface that allows authenticated administrators to execute arbitrary scripts by supplying crafted names containing script or HTML markup. Attackers can inject malicious code that is stored and rendered without proper output encoding, causing script execution in the browsers of users viewing the affected page and enabling unauthorized actions within their session context.

Affected products

Domoticz: before 2026.1 — fixed in 2026.1

How to fix

Upgrade to a fixed version: Domoticz 2026.1. Check the vendor advisory for mitigations.

References

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