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CVE-2021-21471

Estado: ModificadaMedia (6.5)—

In CLA-Assistant, versions before 2.8.5, due to improper access control an authenticated user could access API endpoints which are not intended to be used by the user. This could impact the integrity of the application.

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)

SAP — Cla-assistant

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-21471",
  "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:N/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "cna@sap.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ],
    "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:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cna@sap.com",
      "affectedData": [
        {
          "vendor": "SAP SE",
          "product": "CLA-Assistant",
          "versions": [
            {
              "status": "affected",
              "version": "< 2.8.5"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-01-12T15:15:16.343",
  "references": [
    {
      "url": "https://github.com/cla-assistant/cla-assistant/security/advisories/GHSA-4h6f-c68c-pxhr",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cna@sap.com"
    },
    {
      "url": "https://github.com/cla-assistant/cla-assistant/security/advisories/GHSA-4h6f-c68c-pxhr",
      "tags": [
        "Third Party Advisory"
      ],
      "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 CLA-Assistant, versions before 2.8.5, due to improper access control an authenticated user could access API endpoints which are not intended to be used by the user. This could impact the integrity of the application."
    },
    {
      "lang": "es",
      "value": "En CLA-Assistant, versiones anteriores a 2.8.5, debido a un control de acceso inapropiado, un usuario autenticado podría acceder a endpoints de la API que no están destinados a ser usados por el usuario.&#xa0;Esto podría afectar la integridad de la aplicación"
    }
  ],
  "lastModified": "2026-06-17T03:35:38.287",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:sap:cla-assistant:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "17040C52-9C17-4D02-B409-4567A368DBFC",
              "versionEndExcluding": "2.8.5"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cna@sap.com"
}