{
  "id": "CVE-2021-26539",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-02-08T17:15:13.673",
  "lastModified": "2022-04-26T15:24:43.517",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Apostrophe Technologies sanitize-html before 2.3.1 does not properly handle internationalized domain name (IDN) which could allow an attacker to bypass hostname whitelist validation set by the \"allowedIframeHostnames\" option."
    },
    {
      "lang": "es",
      "value": "Apostrophe Technologies sanitize-html antes de 2.3.1, no maneja apropiadamente los nombres de dominio internacionalizados (IDN), lo que podr\u00eda permitir a un atacante omitir la validaci\u00f3n de la lista blanca de nombres de host establecida por la opci\u00f3n \"allowedIframeHostnames\""
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE",
          "baseScore": 5.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apostrophecms:sanitize-html:*:*:*:*:*:node.js:*:*",
              "versionEndExcluding": "2.3.1",
              "matchCriteriaId": "6A1A1822-184A-4E07-AB5C-C15089BD3EED"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://advisory.checkmarx.net/advisory/CX-2021-4308",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#231-2021-01-22",
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/apostrophecms/sanitize-html/pull/458",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    }
  ]
}