CVE-2026-118245

Highcharts Dashboards: `chartConstructor` is an unchecked lookup into the Highcharts namespace

Published Oct 28, 2026 CVSS 4.0 · 8.6 High EPSS < 1% KEV · Not listed
Description
Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until 4.2.2, Highcharts Dashboards uses chartConstructor as an unchecked property lookup in the Highcharts namespace and invokes the selected member with the component container and chartOptions. An attacker who controls dashboard configuration can select a public utility function instead of a supported chart constructor, causing attacker-controlled options to be copied to the container as properties or attributes. Markup and event handlers can then execute in the hosting page origin when the board renders. No user interaction beyond rendering the board is required. This issue is fixed in 4.2.2.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-grj7-r4jv-pw9j Highcharts Dashboards: `chartConstructor` is an unchecked lookup into the Highcharts namespace
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Highcharts
Highcharts dashboards
Highcharts highcharts
Vendors & Products Highcharts
Highcharts dashboards
Highcharts highcharts
Type Values Removed Values Added
Description Highcharts JS is a JavaScript charting library based on SVG. From 1.0.0 until 4.2.2, Highcharts Dashboards uses chartConstructor as an unchecked property lookup in the Highcharts namespace and invokes the selected member with the component container and chartOptions. An attacker who controls dashboard configuration can select a public utility function instead of a supported chart constructor, causing attacker-controlled options to be copied to the container as properties or attributes. Markup and event handlers can then execute in the hosting page origin when the board renders. No user interaction beyond rendering the board is required. This issue is fixed in 4.2.2.
Title Highcharts Dashboards: `chartConstructor` is an unchecked lookup into the Highcharts namespace
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Oct 29, 2026, 8:55 PM
Reserved
Oct 27, 2026, 8:13 PM
Status
Awaiting Analysis
Published
Oct 28, 2026, 6:17 PM
Modified
Oct 29, 2026, 9:17 PM