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CVE-2021-23792

Estado: ModificadaCrítica (9.8)—

The package com.twelvemonkeys.imageio:imageio-metadata before 3.7.1 are vulnerable to XML External Entity (XXE) Injection due to an insecurely initialized XML parser for reading XMP Metadata. An attacker can exploit this vulnerability if they are able to supply a file (e.g. when an online profile picture is processed) with a malicious XMP segment. If the XMP metadata of the uploaded image is parsed, then the XXE vulnerability is triggered.

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)

Twelvemonkeys Project — Twelvemonkeys

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-23792",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "report@snyk.io",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.3,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 3.4,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
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          "availabilityImpact": "HIGH",
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          "confidentialityImpact": "HIGH"
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  "affected": [
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      "affectedData": [
        {
          "vendor": "n/a",
          "product": "com.twelvemonkeys.imageio:imageio-metadata",
          "versions": [
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              "status": "affected",
              "version": "unspecified",
              "lessThan": "3.7.1",
              "versionType": "custom"
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  ],
  "published": "2022-05-06T20:15:07.863",
  "references": [
    {
      "url": "https://github.com/haraldk/TwelveMonkeys/commit/da4efe98bf09e1cce91b7633cb251958a200fc80",
      "tags": [
        "Patch",
        "Third Party Advisory"
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      "source": "report@snyk.io"
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    {
      "url": "https://snyk.io/vuln/SNYK-JAVA-COMTWELVEMONKEYSIMAGEIO-2316763",
      "tags": [
        "Patch",
        "Third Party Advisory"
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      "source": "report@snyk.io"
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    {
      "url": "https://github.com/haraldk/TwelveMonkeys/commit/da4efe98bf09e1cce91b7633cb251958a200fc80",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "https://snyk.io/vuln/SNYK-JAVA-COMTWELVEMONKEYSIMAGEIO-2316763",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-611"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The package com.twelvemonkeys.imageio:imageio-metadata before 3.7.1 are vulnerable to XML External Entity (XXE) Injection due to an insecurely initialized XML parser for reading XMP Metadata. An attacker can exploit this vulnerability if they are able to supply a file (e.g. when an online profile picture is processed) with a malicious XMP segment. If the XMP metadata of the uploaded image is parsed, then the XXE vulnerability is triggered."
    },
    {
      "lang": "es",
      "value": "El paquete com.twelvemonkeys.imageio:imageio-metadata versiones anteriores a 3.7.1, es vulnerable a una Inyección de tipo XML External Entity (XXE) debido a un analizador XML inicializado de forma no segura para leer metadatos XMP. Un atacante puede explotar esta vulnerabilidad si es capaz de suministrar un archivo (por ejemplo, cuando es procesada una foto de perfil en línea) con un segmento XMP malicioso. Si son analizados los metadatos XMP de la imagen cargada, es desencadenada una vulnerabilidad de tipo XXE"
    }
  ],
  "lastModified": "2026-06-17T03:38:53.057",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "3.7.1"
            }
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          "operator": "OR"
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  "sourceIdentifier": "report@snyk.io"
}