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OpenAdvisories
High · 8.4 CVE-2026-118252 EUVD-2026-112367GHSA-rcqf-f6h2-ccg9

Highcharts Dashboards: sidebar component labels are parsed as HTML

Published Oct 28, 2026 · Updated Oct 30, 2026 · Assigned by GitHub_M

Description

Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until 4.2.3, Highcharts Dashboards edit-mode sidebar parses component language strings as HTML rather than inserting them as text. An attacker who controls the Dashboards language configuration can provide markup containing event handlers, which execute in the hosting page origin when a user opens the edit-mode sidebar and the affected labels render. This issue is fixed in 4.2.3.

Affected products

VendorProductAffectedFixed
highcharts highcharts < 13.0.0-beta.2 —
@highcharts dashboards >= 1.0.0, < 4.2.3 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm @highcharts/dashboards >= 1.0.0, < 4.2.3 4.2.3 GHSA-rcqf-f6h2-ccg9

References