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  4. CVE 2026 118255 highcharts grid javascript url in creditshref
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Back to active CVEs
High · CVSS 8.4CVE-2026-118255

Highcharts Grid: javascript: URL in credits.href runs script on clickCVE-2026-118255

Answer in brief

CVE-2026-118255 records a High severity (CVSS 8.4) vulnerability in Highcharts Grid: javascript: URL in credits.href runs script on click. The current sources do not mark it as known exploited. The current feed maps @highcharts/dashboards (generic), @highcharts/grid-pro (generic), highcharts/highcharts (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 28, 2026Updated Oct 28, 2026Source checked Oct 28, 2026First seen by HOL Oct 28, 2026Material review Oct 28, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.4
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 8.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps @highcharts/dashboards (generic), @highcharts/grid-pro (generic), highcharts/highcharts (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
@highcharts/dashboardsgeneric>=3.2.0 <4.0.04.0.0
@highcharts/grid-progeneric>=2.0.0 <3.2.03.2.0
highcharts/highchartsgeneric<13.0.0-beta.213.0.0-beta.2

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for @highcharts/dashboards, @highcharts/grid-pro, highcharts/highcharts.
  2. 2Review the reported fix. Update @highcharts/dashboards to 4.0.0; @highcharts/grid-pro to 3.2.0; highcharts/highcharts to 13.0.0-beta.2 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 28, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 28, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 28, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

Highcharts JS is a JavaScript charting library based on SVG. From 2.0.0 until 3.2.0, Highcharts Grid applies credits.href to the credits link without validating the URL scheme. An attacker who controls Grid configuration can provide a javascript URL, and activating the credits link runs script in the origin of the hosting page with access to that application's data and session state.This issue is fixed in Grid Pro 3.2.0.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Highcharts Core: `breadcrumbs.style` keys become SVG event-handler attributesSame highcharts/highcharts package
  • Highcharts Dashboards / Grid Pro: `DataTable.setCell` and column writers treat `__proto__` as an existing column.Same @highcharts/dashboards package
  • Highcharts Dashboards: editableOptions.propertyPath writes to Object.prototypeSame @highcharts/dashboards package
  • Highcharts: series column construction writes to Object.prototypeSame highcharts/highcharts package
  • Highcharts: dotted series.keys paths write to Object.prototypeSame highcharts/highcharts package
  • Highcharts: javascript: URL in credits.href runs script on clickSame highcharts/highcharts package

Record context

Vulnerability class
XSS
EPSS
Not reported
CWE IDs
CWE-79
Source
CVE List V5
Source checked
Oct 28, 2026
References
4 linked sources
Open source record