CVE-2026-118253

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    CVE-2026-118253

    Published: 28 Oct 2026Last Modified: 31 Oct 2026

    Summary: Highcharts Dashboards: fullscreen labels are parsed as HTML

    Details: 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.

    References: https://github.com/highcharts/highcharts/releases/tag/dashboards-v4.2.3, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/118xxx/CVE-2026-118253.json, https://github.com/highcharts/highcharts/security/advisories/GHSA-58g7-7f52-h92c, https://nvd.nist.gov/vuln/detail/CVE-2026-118253, https://github.com/highcharts/highcharts/commit/f97213bab745e40f628720c21f4e8b31ee3e768b

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -283f2c015f0e2830d7eb53714ce894efc227b1c7

    Affected versions

    v13.0.0
    v13.0.2
    v13.0.1
    v13.0.0-beta.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-118253 | CVE-DB