GHSA-R5WG-Q8FC-P6W2

Vulnerability from github – Published: 2026-10-28 19:57 – Updated: 2026-10-28 19:57
VLAI
Summary
Highcharts Grid parses pagination language options as HTML
Details

Impact

The pagination language strings are written into the DOM as markup rather than as text. An attacker who controls those language options can supply elements carrying event handlers, and those handlers execute in the origin of the page hosting the Grid when the pagination controls render. Exploitation requires that untrusted data reach the Grid language configuration and that pagination be enabled on the Grid.

Workarounds

Run this once after loading the Grid, before creating any grid:

{
    const Pagination = Grid.Pagination;

    const escapeLang = (pagination) => {
        const lang = pagination.lang;
        if (!lang) {
            return;
        }

        for (const key of ['pageInfo', 'pageSizeLabel']) {
            if (typeof lang[key] === 'string') {
                lang[key] = lang[key].replace(/</g, '&lt;');
            }
        }
    };

    for (const name of ['updatePageInfo', 'renderPageSizeSelector']) {
        const original = Pagination.prototype[name];

        Pagination.prototype[name] = function (...args) {
            escapeLang(this);
            return original.apply(this, args);
        };
    }
}

Obtaining the patched version

The patched releases are available from all the usual distribution channels. With npm, upgrade the affected package to the patched version listed above, for example npm install @highcharts/grid-lite@3.2.0. If you load Highcharts Grid from a CDN, use a versioned URL, for example https://cdn.jsdelivr.net/npm/@highcharts/grid-lite@3.2.0/grid-lite.js. For more on each installation method, see the installation guide.

Severity
8.6 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N
Show details on source website
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.1.0"
      },
      "package": {
        "ecosystem": "npm",
        "name": "@highcharts/grid-lite"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "3.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.1.0"
      },
      "package": {
        "ecosystem": "npm",
        "name": "@highcharts/grid-pro"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "3.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-118254"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-28T19:57:34Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\nThe pagination language strings are written into the DOM as markup rather than as text. An attacker who controls those language options can supply elements carrying event handlers, and those handlers execute in the origin of the page hosting the Grid when the pagination controls render. Exploitation requires that untrusted data reach the Grid language configuration and that pagination be enabled on the Grid.\n\n### Workarounds\nRun this once after loading the Grid, before creating any grid:\n```javascript\n{\n    const Pagination = Grid.Pagination;\n\n    const escapeLang = (pagination) =\u003e {\n        const lang = pagination.lang;\n        if (!lang) {\n            return;\n        }\n\n        for (const key of [\u0027pageInfo\u0027, \u0027pageSizeLabel\u0027]) {\n            if (typeof lang[key] === \u0027string\u0027) {\n                lang[key] = lang[key].replace(/\u003c/g, \u0027\u0026lt;\u0027);\n            }\n        }\n    };\n\n    for (const name of [\u0027updatePageInfo\u0027, \u0027renderPageSizeSelector\u0027]) {\n        const original = Pagination.prototype[name];\n\n        Pagination.prototype[name] = function (...args) {\n            escapeLang(this);\n            return original.apply(this, args);\n        };\n    }\n}\n```\n\n### Obtaining the patched version\nThe patched releases are available from all the usual distribution channels. With npm, upgrade the affected package to the patched version listed above, for example `npm install @highcharts/grid-lite@3.2.0`. If you load Highcharts Grid from a CDN, use a versioned URL, for example `https://cdn.jsdelivr.net/npm/@highcharts/grid-lite@3.2.0/grid-lite.js`. For more on each installation method, see the [installation guide](https://www.highcharts.com/docs/grid/installation).",
  "id": "GHSA-r5wg-q8fc-p6w2",
  "modified": "2026-10-28T19:57:34Z",
  "published": "2026-10-28T19:57:34Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/highcharts/highcharts/security/advisories/GHSA-r5wg-q8fc-p6w2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/highcharts/highcharts/commit/1e8ded84d52191883965641b863cf0c73eb759aa"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/highcharts/highcharts"
    },
    {
      "type": "WEB",
      "url": "https://github.com/highcharts/highcharts/releases/tag/grid-v3.2.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Highcharts Grid parses pagination language options as HTML"
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.