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.
Published: 2026-10-28
Score: 8.4 High
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

No solution or workaround provided in the CVE record.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-rcqf-f6h2-ccg9 Highcharts Dashboards parses sidebar component labels as HTML
History

Fri, 30 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Wed, 28 Oct 2026 22:15:00 +0000

Type Values Removed Values Added
First Time appeared Highcharts
Highcharts dashboards
Highcharts highcharts
Vendors & Products Highcharts
Highcharts dashboards
Highcharts highcharts

Wed, 28 Oct 2026 18:30:00 +0000

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 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.
Title Highcharts Dashboards: sidebar component 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'}


Subscriptions

Highcharts Dashboards Highcharts
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-30T18:20:14.175Z

Reserved: 2026-10-27T20:13:55.313Z

Link: CVE-2026-118252

cve-icon Vulnrichment

Updated: 2026-10-30T18:20:10.673Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-28T19:17:29.483

Modified: 2026-10-30T19:18:18.450

Link: CVE-2026-118252

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-28T21:45:10Z

Weaknesses