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CVE PROGRAM SOURCE RECORD8.4 High

CVE-2026-118253

Highcharts Dashboards: fullscreen labels are parsed as HTML

Description

Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until 4.2.3, Highcharts Dashboards edit mode parses fullscreen language labels as HTML rather than inserting them as text. An attacker who controls Dashboards language options can supply markup with event handlers, which execute in the hosting page origin when the fullscreen control is rendered. The label is reachable only when edit mode is enabled and viewFullscreen is present in the context-menu items. This issue is fixed in 4.2.3.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

highcharts highcharts

  • < 13.0.0-beta.2affected

@highcharts dashboards

  • >= 1.0.0, < 4.2.3affected

References