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archivevulnerability · 22 Sep 2026 · 20:40 UTC

GHSA-wx4m-69m9-gx3m: Home Assistant: XSS in Statistics Graph Card

VULNCVE-2026-91130source · GTH
HIGHCritical vulnerability
What to do
  • Critical severity — schedule an urgent patch.

last 60 dispatches · spectrum

### Summary An authenticated party can add a malicious name to any statistics-capable entity, allowing for Cross-Site Scripting attacks against anyone who views a Statistics Graph card containing that entity, when they hover over any data point on the chart. **Payload** **Payload triggering** An alternative, and more impactful scenario, is that the entity gets a malicious name from the provider of the integration (e.g. Tibber, Shelly, or any HACS integration), and is exploited that way through the default name — without requiring any direct access to the Home Assistant instance. …

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