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: n/a
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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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

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: 2026-10-28T18:08:33.407Z

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

Link: CVE-2026-118252

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

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

Link: CVE-2026-118252

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')