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CVE-2020-35577

Status: ModifiedMedium (6.5)—

In Endalia Selection Portal before 4.205.0, an Insecure Direct Object Reference (IDOR) allows any authenticated user to download every file uploaded to the platform by changing the value of the file identifier (aka CommonDownload identification number).

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)

Endalia — Selection Portal

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2020-35577",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-02-18T14:15:13.393",
  "references": [
    {
      "url": "https://github.com/blackarrowsec/advisories/tree/master/2020/CVE-2020-35577",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.endalia.com/en/software/",
      "tags": [
        "Product"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/blackarrowsec/advisories/tree/master/2020/CVE-2020-35577",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.endalia.com/en/software/",
      "tags": [
        "Product"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Endalia Selection Portal before 4.205.0, an Insecure Direct Object Reference (IDOR) allows any authenticated user to download every file uploaded to the platform by changing the value of the file identifier (aka CommonDownload identification number)."
    },
    {
      "lang": "es",
      "value": "En Endalia Selection Portal versiones anteriores a 4.205.0, una Referencia Directa a Objeto No Segura (IDOR) permite a cualquier usuario autenticado descargar todos los archivos cargados en la plataforma al cambiar el valor del identificador del archivo (también se conoce como número de identificación CommonDownload)"
    }
  ],
  "lastModified": "2026-06-17T03:13:58.247",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:endalia:selection_portal:4.205.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "56F2B716-191E-44A9-A09C-A0B2D88C44D6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}