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CVE-2020-9387

Status: ModifiedMedium (4.3)—

In Mahara 19.04 before 19.04.5 and 19.10 before 19.10.3, account details are shared in the Elasticsearch results for accounts that are not accessible when the config setting 'Isolated institutions' is turned on.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Mahara — Mahara

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2020-9387",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 3.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:P/I:N/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-04-30T13:15:13.460",
  "references": [
    {
      "url": "https://bugs.launchpad.net/mahara/+bug/1836984",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://mahara.org/interaction/forum/topic.php?id=8612",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugs.launchpad.net/mahara/+bug/1836984",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://mahara.org/interaction/forum/topic.php?id=8612",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Mahara 19.04 before 19.04.5 and 19.10 before 19.10.3, account details are shared in the Elasticsearch results for accounts that are not accessible when the config setting 'Isolated institutions' is turned on."
    },
    {
      "lang": "es",
      "value": "En Mahara versiones 19.04 anteriores a la versión  19.04.5 y versiones 19.10 anteriores a la versión 19.10.3, los detalles de cuentas son compartidos en los resultados de Elasticsearch para las cuentas que no son accesibles cuando el ajuste de configuración \"Isolated institutions\" está activado."
    }
  ],
  "lastModified": "2026-06-17T03:27:51.620",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "03829FC2-5003-4325-B0A9-56AF4B75EAED",
              "versionEndExcluding": "19.04.5",
              "versionStartIncluding": "19.04"
            },
            {
              "criteria": "cpe:2.3:a:mahara:mahara:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B87F6ACC-C0AB-469A-92DA-886207E63800",
              "versionEndExcluding": "19.10.3",
              "versionStartIncluding": "19.10"
            },
            {
              "criteria": "cpe:2.3:a:mahara:mahara:20.04:rc1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "422F667D-A371-4615-AA29-EAA80185386E"
            },
            {
              "criteria": "cpe:2.3:a:mahara:mahara:20.04:rc2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "2EAEBCCF-6E76-4B15-BFFA-0119DEFE56D3"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}