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CVE-2026-47759

Estado: AnalizadaMedia (5.4)—

TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Tiny — Tinymce

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-47759",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-47759",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-05-30T01:58:26.866780Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.7,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.8,
        "exploitabilityScore": 2.3
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 5.4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.3
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "tinymce",
          "product": "tinymce",
          "versions": [
            {
              "status": "affected",
              "version": "< 5.11.1"
            },
            {
              "status": "affected",
              "version": ">= 6.0.0, <= 6.8.6"
            },
            {
              "status": "affected",
              "version": ">= 7.0.0, < 7.9.3"
            },
            {
              "status": "affected",
              "version": ">= 8.0.0, < 8.5.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-05-28T16:16:28.070",
  "references": [
    {
      "url": "https://github.com/tinymce/tinymce/security/advisories/GHSA-q742-qvgc-gc2f",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overview",
      "tags": [
        "Release Notes"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overview",
      "tags": [
        "Release Notes"
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1."
    }
  ],
  "lastModified": "2026-06-17T10:54:39.620",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "33F45A92-27A3-41F4-91E3-4C3001F11E56",
              "versionEndExcluding": "5.11.1"
            },
            {
              "criteria": "cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7A0B42F4-3EAA-49D5-B9DF-AB74687FB282",
              "versionEndExcluding": "7.9.3",
              "versionStartIncluding": "6.0.0"
            },
            {
              "criteria": "cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4F3C3EF2-FD5B-4CC3-B2A1-F6D496708272",
              "versionEndExcluding": "8.5.1",
              "versionStartIncluding": "8.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}