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CVE-2019-20100

Estado: ModificadaMedia (4.7)—

The Atlassian Application Links plugin is vulnerable to cross-site request forgery (CSRF). The following versions are affected: all versions prior to 5.4.21, from version 6.0.0 before version 6.0.12, from version 6.1.0 before version 6.1.2, from version 7.0.0 before version 7.0.2, and from version 7.1.0 before version 7.1.3. The vulnerable plugin is used by Atlassian Jira Server and Data Center before version 8.7.0. An attacker could exploit this by tricking an administrative user into making malicious HTTP requests, allowing the attacker to enumerate hosts and open ports on the internal network where Jira server is present.

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 (3)

Atlassian — JiraAtlassian — Jira Data CenterAtlassian — Jira Server

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2019-20100",
  "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:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "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": 4.7,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@atlassian.com",
      "affectedData": [
        {
          "vendor": "Atlassian",
          "product": "Application Links",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "5.4.21",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "6.0.0",
              "lessThan": "unspecified",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "6.0.12",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "6.1.0",
              "lessThan": "unspecified",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "6.1.2",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "7.0.0",
              "lessThan": "unspecified",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "7.0.2",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "7.1.0",
              "lessThan": "unspecified",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "7.1.3",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Atlassian",
          "product": "Jira Server",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "8.7.0",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-02-12T14:15:11.263",
  "references": [
    {
      "url": "https://ecosystem.atlassian.net/browse/APL-1390",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@atlassian.com"
    },
    {
      "url": "https://jira.atlassian.com/browse/JRASERVER-70607",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "security@atlassian.com"
    },
    {
      "url": "https://www.tenable.com/security/research/tra-2020-06",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "security@atlassian.com"
    },
    {
      "url": "https://ecosystem.atlassian.net/browse/APL-1390",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://jira.atlassian.com/browse/JRASERVER-70607",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.tenable.com/security/research/tra-2020-06",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-352"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Atlassian Application Links plugin is vulnerable to cross-site request forgery (CSRF). The following versions are affected: all versions prior to 5.4.21, from version 6.0.0 before version 6.0.12, from version 6.1.0 before version 6.1.2, from version 7.0.0 before version 7.0.2, and from version 7.1.0 before version 7.1.3. The vulnerable plugin is used by Atlassian Jira Server and Data Center before version 8.7.0. An attacker could exploit this by tricking an administrative user into making malicious HTTP requests, allowing the attacker to enumerate hosts and open ports on the internal network where Jira server is present."
    },
    {
      "lang": "es",
      "value": "El plugin Atlassian Application Links es vulnerable a un ataque de tipo cross-site request forgery (CSRF). Las siguientes versiones están afectadas: todas las versiones anteriores a 5.4.21, desde versión 6.0.0 anterior a versión 6.0.12, desde versión 6.1.0 anterior a versión 6.1.2, desde versión 7.0.0 anterior a versión 7.0.2 y desde versión 7.1.0 anterior a versión 7.1.3. El plugin vulnerable es usado por Atlassian Jira Server and Data Center anterior a versión 8.7.0. Un atacante podría explotar esto al engañar a un usuario administrativo para que realice peticiones HTTP maliciosas, permitiendo que el atacante enumere hosts y abra puertos en la red interna donde el servidor Jira está presente."
    }
  ],
  "lastModified": "2026-06-17T02:29:58.630",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8F875304-9569-456B-A310-FA755B94A2C2",
              "versionEndExcluding": "8.4.5",
              "versionStartIncluding": "7.0.0"
            },
            {
              "criteria": "cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "59441EB1-B962-40C5-8517-47E16BE50329",
              "versionEndExcluding": "8.5.4",
              "versionStartIncluding": "7.0.0"
            },
            {
              "criteria": "cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8E98BEBD-D918-40AA-8749-CB566CDF6A7A",
              "versionEndExcluding": "8.6.2",
              "versionStartIncluding": "8.5.5"
            },
            {
              "criteria": "cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "84D83D55-0EB1-4813-B769-33B70C92A452",
              "versionEndExcluding": "8.6.2",
              "versionStartIncluding": "8.5.5"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@atlassian.com"
}