{
  "schemaVersion": 1,
  "site": "https://cveboard.org",
  "generatedAt": "2026-10-23T19:17:53.850Z",
  "lastRun": "2026-10-23T19:01:02.861Z",
  "liveDays": 14,
  "filters": {
    "kind": null,
    "exploited": false,
    "severity": null,
    "ecosystems": [],
    "tag": "tinacms"
  },
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "incidents": [
    {
      "id": "cve-2026-108261",
      "url": "https://cveboard.org/i/cve-2026-108261",
      "urlPt": "https://cveboard.org/pt/i/cve-2026-108261",
      "json": "https://cveboard.org/i/cve-2026-108261.json",
      "kind": "vuln",
      "live": true,
      "knownExploited": false,
      "severity": "critical",
      "title": "TinaCMS admin preview iframe loads an attacker-controlled origin from the URL fragment",
      "summary": "The TinaCMS admin builds its preview <iframe src> from the /~/* hash-router splat without checking that the value stays same-origin. A fragment with a doubled slash (#/~//attacker.example/p) becomes the protocol-relative URL //attacker.example/p, so the admin frames an external site.",
      "titlePt": "iframe de pré-visualização do admin do TinaCMS carrega uma origem controlada pelo atacante a partir do fragmento da URL",
      "summaryPt": "A construção do preview <iframe src> do admin do TinaCMS é feita a partir do /~/* hash-router splat sem verificar se o valor permanece mesmo-origem. Um fragmento com barra dupla (#/~//attacker.example/p) se torna a URL relativa ao protocolo //attacker.example/p, então o admin embute um site externo.",
      "affected": [
        {
          "vendor": "tinacms",
          "product": "tinacms",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "< 3.14.0",
              "status": "affected",
              "lessThan": null,
              "lessThanOrEqual": null
            }
          ],
          "omitted": 0,
          "fixed": []
        },
        {
          "vendor": "@tinacms",
          "product": "app",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "< 2.5.14",
              "status": "affected",
              "lessThan": null,
              "lessThanOrEqual": null
            }
          ],
          "omitted": 0,
          "fixed": []
        }
      ],
      "omitted": 0,
      "references": [
        {
          "url": "https://github.com/tinacms/tinacms/security/advisories/GHSA-x34j-47hf-4xg7",
          "tag": "exploit"
        }
      ],
      "cwes": [
        {
          "id": "CWE-346",
          "name": "Origin Validation Error"
        },
        {
          "id": "CWE-441",
          "name": "Unintended Proxy or Intermediary ('Confused Deputy')"
        },
        {
          "id": "CWE-601",
          "name": "URL Redirection to Untrusted Site ('Open Redirect')"
        }
      ],
      "ssvc": {
        "exploitation": "poc",
        "automatable": "no",
        "impact": "total",
        "at": "2026-10-13T11:22:22.126Z"
      },
      "fix": "listed",
      "tags": [
        "tinacms",
        "npm"
      ],
      "cves": [
        "CVE-2026-108261"
      ],
      "ghsa": "GHSA-x34j-47hf-4xg7",
      "cvss": {
        "score": 9.3,
        "version": "3.1",
        "by": "GitHub"
      },
      "epss": {
        "percentage": 0.0016,
        "percentile": 0.04742,
        "asOf": "2026-10-23",
        "by": "FIRST"
      },
      "packages": [
        {
          "ecosystem": "npm",
          "name": "tinacms",
          "vulnerable": "<= 3.13.0",
          "fixed": "3.14.0",
          "advisory": "GHSA-x34j-47hf-4xg7"
        },
        {
          "ecosystem": "npm",
          "name": "@tinacms/app",
          "vulnerable": "<= 2.5.13",
          "fixed": "2.5.14",
          "advisory": "GHSA-x34j-47hf-4xg7"
        }
      ],
      "vendor": "tinacms",
      "product": "tinacms",
      "kev": null,
      "breach": null,
      "retracted": false,
      "sources": [
        {
          "label": "GitHub Advisory Database",
          "url": "https://github.com/advisories/GHSA-x34j-47hf-4xg7"
        }
      ],
      "publishedAt": "2026-10-09T20:56:48.000Z",
      "updatedAt": "2026-10-09T20:56:48.000Z"
    }
  ],
  "tag": {
    "tag": "tinacms",
    "name": "tinacms",
    "kev": null
  }
}