CVE-2026-118253

Highcharts Dashboards: fullscreen labels are parsed as HTML

Published Oct 28, 2026 CVSS 4.0 · 8.4 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-58g7-7f52-h92c Highcharts Dashboards parses fullscreen labels as HTML
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 4.2.3, 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.
Title Highcharts Dashboards: fullscreen labels are parsed as HTML
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/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, 7:17 PM
Modified
Oct 29, 2026, 9:17 PM