CVE-2026-116004: onyx-dot-app Onyx PreviewTab.tsx cross site scripting
A security vulnerability has been detected in onyx-dot-app Onyx up to 5.0.0. Impacted is an unknown function of the file web/src/app/craft/components/output-panel/PreviewTab.tsx. The manipulation leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected Software
Event History
Frequently Asked Questions
Which deployments may be affected?
The issue affects onyx-dot-app Onyx versions up to 5.0.0. The available information does not identify a fixed version or configuration-specific limitation.
What access would an attacker need?
The attack can be initiated remotely, but the CVSS vector indicates the attacker needs low-level privileges and user interaction. Exploitation involves cross-site scripting in PreviewTab.tsx.
Is exploitation already publicly known?
Yes. A public exploit disclosure exists and may be used, so affected deployments should be treated as having practical exploitation risk.
What can be done if an update is not available?
The provided information does not list a vendor patch or workaround. Restrict low-privileged access to affected functionality and reduce exposure to untrusted content until a remediation is available.