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[ CVE-2026-118255 · Published 28 Oct 2026 ]

Highcharts Grid: `javascript:` URL in credits.href runs script on click

CVSS 8.4 EPSS <1%Fix available

[ Description ]Official description

Highcharts JS is a JavaScript charting library based on SVG. From 2.0.0 until 3.2.0, Highcharts Grid applies credits.href to the credits link without validating the URL scheme. An attacker who controls Grid configuration can provide a javascript URL, and activating the credits link runs script in the origin of the hosting page with access to that application's data and session state.This issue is fixed in Grid Pro 3.2.0.

[ Fixes ]Fixes and patches

  • @highcharts/dashboards 4.0.0Fixed version · GitHub Advisories · npm package @highcharts/dashboards: upgrade to 4.0.0 or later (affected >= 3.2.0, <= 3.6.0)
  • @highcharts/grid-pro 3.2.0Fixed version · GitHub Advisories · npm package @highcharts/grid-pro: upgrade to 3.2.0 or later (affected >= 2.0.0, <= 3.1.0)

[ Packages ]Affected open-source packages

[ References ]References