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CVE-2019-20102

Estado: ModificadaMedia (6.1)—

The attachment-uploading feature in Atlassian Confluence Server from version 6.14.0 through version 6.14.3, and version 6.15.0 before version 6.15.5 allows remote attackers to achieve stored cross-site- scripting (SXSS) via a malicious attachment with a modified `mimeType` parameter.

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)

Atlassian — Confluence Server

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2019-20102",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.1,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@atlassian.com",
      "affectedData": [
        {
          "vendor": "Atlassian",
          "product": "Confluence Server",
          "versions": [
            {
              "status": "affected",
              "version": "6.14.0",
              "lessThan": "unspecified",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "6.14.3"
            },
            {
              "status": "affected",
              "version": "6.15.0",
              "lessThan": "unspecified",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "6.15.5",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-04-22T04:15:10.897",
  "references": [
    {
      "url": "https://jira.atlassian.com/browse/CONFSERVER-59358",
      "tags": [
        "Permissions Required"
      ],
      "source": "security@atlassian.com"
    },
    {
      "url": "https://jira.atlassian.com/browse/CONFSERVER-59358",
      "tags": [
        "Permissions Required"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The attachment-uploading feature in Atlassian Confluence Server from version 6.14.0 through version 6.14.3, and version 6.15.0 before version 6.15.5 allows remote attackers to achieve stored cross-site- scripting (SXSS) via a malicious attachment with a modified `mimeType` parameter."
    },
    {
      "lang": "es",
      "value": "La funcionalidad de carga de archivos adjuntos en Atlassian Confluence Server desde versión 6.14.0 hasta versión 6.14.3, y versión 6.15.0 anterior a versión 6.15.5, permite a atacantes remotos lograr un ataque de tipo cross-site-scripting almacenado (SXSS) por medio de un archivo adjunto malicioso con un parámetro \"mimeType\" modificado."
    }
  ],
  "lastModified": "2026-06-17T02:29:58.920",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "627C7DA6-843C-4F1E-A560-E533CB0CB4DD",
              "versionEndIncluding": "6.14.3",
              "versionStartIncluding": "6.14.0"
            },
            {
              "criteria": "cpe:2.3:a:atlassian:confluence_server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "14ADE4E5-F3DD-4EC2-AD2C-4EACA97FF2F7",
              "versionEndExcluding": "6.15.5",
              "versionStartIncluding": "6.15.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@atlassian.com"
}