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CVE-2021-32696

Estado: ModificadaMedia (5.3)—
Gravedad5.3Media · CVSS 3.1
Probabilidad de explotación1.08 %mayor que el 65 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado

El paquete npm "striptags" es una implementación de strip_tags de PHP en Typescript. En striptags versiones anteriores a 3.2.0, una vulnerabilidad de confusión de tipos puede causar que "striptags" concatene cadenas no saneadas cuando es pasado un objeto tipo array como el parámetro "html". Esto puede ser abusado por un atacante que pueda controlar la forma de su entrada, por ejemplo, si los parámetros query son pasados directamente a la función. Esto puede conllevar una vulnerabilidad de tipo XSS

CVSS

Puntuación base
5.3
Versión
3.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
1.08 %
Percentil entre todas las CVEs puntuadas
65
Fecha de la puntuación
21/10/2026

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)

Striptags Project — Striptags

CWE

Referencias

Mostrar las 8 referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-32696",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 3.7,
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "ericnorris",
          "product": "striptags",
          "versions": [
            {
              "status": "affected",
              "version": "< 3.2.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-06-18T20:15:07.633",
  "references": [
    {
      "url": "https://github.com/ericnorris/striptags/commit/f252a6b0819499cd65403707ebaf5cc925f2faca",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/ericnorris/striptags/releases/tag/v3.2.0",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/ericnorris/striptags/security/advisories/GHSA-qxg5-2qff-p49r",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://www.npmjs.com/package/striptags",
      "tags": [
        "Product",
        "Third Party Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/ericnorris/striptags/commit/f252a6b0819499cd65403707ebaf5cc925f2faca",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/ericnorris/striptags/releases/tag/v3.2.0",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/ericnorris/striptags/security/advisories/GHSA-qxg5-2qff-p49r",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.npmjs.com/package/striptags",
      "tags": [
        "Product",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        },
        {
          "lang": "en",
          "value": "CWE-241"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-843"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The npm package \"striptags\" is an implementation of PHP's strip_tags in Typescript. In striptags before version 3.2.0, a type-confusion vulnerability can cause `striptags` to concatenate unsanitized strings when an array-like object is passed in as the `html` parameter. This can be abused by an attacker who can control the shape of their input, e.g. if query parameters are passed directly into the function. This can lead to a XSS."
    },
    {
      "lang": "es",
      "value": "El paquete npm \"striptags\" es una implementación de strip_tags de PHP en Typescript. En striptags versiones anteriores a 3.2.0, una vulnerabilidad de confusión de tipos puede causar que \"striptags\" concatene cadenas no saneadas cuando es pasado un objeto tipo array como el parámetro \"html\". Esto puede ser abusado por un atacante que pueda controlar la forma de su entrada, por ejemplo, si los parámetros query son pasados directamente a la función. Esto puede conllevar una vulnerabilidad de tipo XSS"
    }
  ],
  "lastModified": "2026-06-17T03:53:26.750",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:striptags_project:striptags:*:*:*:*:*:node.js:*:*",
              "vulnerable": true,
              "matchCriteriaId": "15E6A9CD-E398-4D89-A6B4-CD1E88213789",
              "versionEndExcluding": "3.2.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}