{
  "schemaVersion": 1,
  "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"
    }
  ],
  "record": {
    "id": "CVE-2026-93547",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-93547",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-30T13:13:13.074Z",
    "updatedAt": "2026-10-03T13:52:42.352Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Missing Authorization Check in Vaadin Spreadsheet Allows Cell Comments to Be Written to Protected Sheets and Locked Cells",
      "summary": "A missing authorization check in the Vaadin Spreadsheet component allows an authenticated user of an application that renders a spreadsheet to add or replace cell comments on a sheet that has protection enabled, including on cells that are locked. Writing a comment to a cell that does not exist yet also creates the row and the cell.\n\n\nUsers of affected versions should apply the following mitigation or upgrade. Releases that have fixed this issue include:\n\nProduct version\nVaadin 23.1.0 - 23.6.13\nVaadin 24.0.0 - 24.9.21\nVaadin 24.10.0 - 24.10.9\nVaadin 25.0.0 - 25.1.11\nVaadin 25.2.0 - 25.2.6\nVaadin Framework 7 and 8 with the Spreadsheet add-on 2.0.0 - 3.1.0\n\nMitigation\nUpgrade to 23.6.14\nUpgrade to 24.9.22\nUpgrade to 24.10.10\nUpgrade to 25.1.12\nUpgrade to 25.2.7 or newer\nUpgrade the Spreadsheet add-on to 3.1.1\n\nPlease note that Vaadin versions 10-13 and 15-22 are no longer supported and you should update either to the latest 23, 24, 25 version.\n\nArtifacts\nMaven coordinates Vulnerable versions Fixed version\ncom.vaadin:vaadin 23.1.0 - 23.6.13 >=23.6.14\ncom.vaadin:vaadin 24.0.0 - 24.9.21 >=24.9.22\ncom.vaadin:vaadin 24.10.0 - 24.10.9 >=24.10.10\ncom.vaadin:vaadin 25.0.0 - 25.1.11 >=25.1.12\ncom.vaadin:vaadin 25.2.0 - 25.2.6 >=25.2.7\ncom.vaadin:vaadin-spreadsheet-flow 23.1.0 - 23.6.13 >=23.6.14\ncom.vaadin:vaadin-spreadsheet-flow 24.0.0 - 24.9.21 >=24.9.22\ncom.vaadin:vaadin-spreadsheet-flow 24.10.0 - 24.10.9 >=24.10.10\ncom.vaadin:vaadin-spreadsheet-flow 25.0.0 - 25.1.11 >=25.1.12\ncom.vaadin:vaadin-spreadsheet-flow 25.2.0 - 25.2.6 >=25.2.7\ncom.vaadin:vaadin-spreadsheet 2.0.0 - 3.1.0 >=3.1.1",
      "affected": [
        {
          "vendor": "vaadin",
          "product": "vaadin",
          "packageName": "com.vaadin:vaadin",
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "23.1.0",
              "status": "affected",
              "versionType": "maven",
              "lessThan": "23.6.14"
            },
            {
              "version": "24.0.0",
              "status": "affected",
              "versionType": "maven",
              "lessThan": "24.9.22"
            },
            {
              "version": "24.10.0",
              "status": "affected",
              "versionType": "maven",
              "lessThan": "24.10.10"
            },
            {
              "version": "25.0.0",
              "status": "affected",
              "versionType": "maven",
              "lessThan": "25.1.12"
            },
            {
              "version": "25.2.0",
              "status": "affected",
              "versionType": "maven",
              "lessThan": "25.2.7"
            }
          ]
        },
        {
          "vendor": "vaadin",
          "product": "vaadin-spreadsheet-flow",
          "packageName": "com.vaadin:vaadin-spreadsheet-flow",
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "23.1.0",
              "status": "affected",
              "versionType": "maven",
              "lessThan": "23.6.14"
            },
            {
              "version": "24.0.0",
              "status": "affected",
              "versionType": "maven",
              "lessThan": "24.9.22"
            },
            {
              "version": "24.10.0",
              "status": "affected",
              "versionType": "maven",
              "lessThan": "24.10.10"
            },
            {
              "version": "25.0.0",
              "status": "affected",
              "versionType": "maven",
              "lessThan": "25.1.12"
            },
            {
              "version": "25.2.0",
              "status": "affected",
              "versionType": "maven",
              "lessThan": "25.2.7"
            }
          ]
        },
        {
          "vendor": "vaadin",
          "product": "vaadin-spreadsheet",
          "packageName": "com.vaadin:vaadin-spreadsheet",
          "collectionURL": "https://maven.vaadin.com/vaadin-addons",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "2.0.0",
              "status": "affected",
              "versionType": "maven",
              "lessThan": "3.1.1"
            }
          ]
        }
      ]
    }
  }
}