{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "4.9.0"
              },
              {
                "fixed": "5.0.1"
              },
              {
                "fixed": "5.0.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "7cf1713c5a14d36cf88f4e5f467ddc74d7c6f600"
            },
            {
              "fixed": "247661f935459ecb950f4addb7287f1b99d659e1"
            }
          ],
          "repo": "https://github.com/chartbrew/chartbrew",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-6q2j-365c-7gqf"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41518.json"
  },
  "details": "Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. In versions 4.9.0 through 5.0.0, an authenticated user with project-editor permissions can store arbitrary HTML/JavaScript in the `ChartDatasetConfig.legend` field. The payload is persisted verbatim in the database, propagated through the Chart.js rendering pipeline, and injected into the tooltip DOM element via an unguarded `innerHTML` assignment in `ChartTooltip.js`. Every unauthenticated viewer of the public dashboard triggers JavaScript execution on page load — no hover interaction is required. Browser-based Playwright verification confirmed `alert('localhost')` fires immediately and `\u003cimg src=\"x\" onerror=\"alert(document.domain)\"\u003e` is present in the `#chartjs-tooltip` DOM element. Version 5.0.1 contains a fix.",
  "id": "CVE-2026-41518",
  "modified": "2026-07-15T01:48:49.871665405Z",
  "published": "2026-06-04T19:28:55.627Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41518.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/chartbrew/chartbrew/security/advisories/GHSA-6q2j-365c-7gqf"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41518"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Chartbrew has a stored DOM XSS via Chart Tooltip innerHTML (ChartDatasetConfig.legend)"
}