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CVE-2020-4028

Estado: ModificadaMedia (5.3)—

Versions before 8.9.1, Various resources in Jira responded with a 404 instead of redirecting unauthenticated users to the login page, in some situations this may have allowed unauthorised attackers to determine if certain resources exist or not through an Information Disclosure vulnerability.

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 (2)

Atlassian — JiraAtlassian — Jira Software Data Center

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-4028",
  "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:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "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:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@atlassian.com",
      "affectedData": [
        {
          "vendor": "Atlassian",
          "product": "Jira Server and Data Center",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "8.9.1",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-06-23T13:15:17.760",
  "references": [
    {
      "url": "https://jira.atlassian.com/browse/JRASERVER-71175",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "security@atlassian.com"
    },
    {
      "url": "https://jira.atlassian.com/browse/JRASERVER-71175",
      "tags": [
        "Issue Tracking",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Versions before 8.9.1, Various resources in Jira responded with a 404 instead of redirecting unauthenticated users to the login page, in some situations this may have allowed unauthorised attackers to determine if certain resources exist or not through an Information Disclosure vulnerability."
    },
    {
      "lang": "es",
      "value": "En versiones anteriores a 8.9.1, varios recursos en Jira respondieron con un 404 en lugar de redireccionar a los usuarios no autenticados a la página de inicio de sesión, en algunas situaciones esto puede haber permitido que atacantes no autorizados determinen si existen ciertos recursos o no por medio de una vulnerabilidad de Divulgación de Información"
    }
  ],
  "lastModified": "2026-06-17T03:19:26.917",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9273B156-C63F-4A8F-97E0-7D0C60D4C242",
              "versionEndExcluding": "8.9.1"
            },
            {
              "criteria": "cpe:2.3:a:atlassian:jira_software_data_center:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A666CC22-7A71-41FB-9477-2DD4A0326A35",
              "versionEndExcluding": "8.9.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@atlassian.com"
}