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CVE-2021-21016

Status: ModifiedCritical (9.1)—

Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier) and 2.3.6 (and earlier) are vulnerable to OS command injection via the WebAPI. Successful exploitation could lead to remote code execution by an authenticated attacker. Access to the admin console is required for successful exploitation.

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)

Magento — Magento

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2021-21016",
  "cveTags": [],
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        "source": "nvd@nist.gov",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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        "source": "psirt@adobe.com",
        "cvssData": {
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          "version": "3.0",
          "baseScore": 9.1,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 2.3
      }
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  },
  "affected": [
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      "source": "psirt@adobe.com",
      "affectedData": [
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          "vendor": "Adobe",
          "product": "Magento Commerce",
          "versions": [
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              "status": "affected",
              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "2.4.1"
            },
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              "status": "affected",
              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "2.4.0-p1"
            },
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              "status": "affected",
              "version": "unspecified",
              "versionType": "custom",
              "lessThanOrEqual": "2.3.6"
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  "published": "2021-02-11T20:15:13.920",
  "references": [
    {
      "url": "https://helpx.adobe.com/security/products/magento/apsb21-08.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@adobe.com"
    },
    {
      "url": "https://helpx.adobe.com/security/products/magento/apsb21-08.html",
      "tags": [
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "psirt@adobe.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
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    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Magento versions 2.4.1 (and earlier), 2.4.0-p1 (and earlier) and 2.3.6 (and earlier) are vulnerable to OS command injection via the WebAPI. Successful exploitation could lead to remote code execution by an authenticated attacker. Access to the admin console is required for successful exploitation."
    },
    {
      "lang": "es",
      "value": "Magento versiones 2.4.1 (y anteriores), versiones 2.4.0-p1 (y anteriores) y versiones 2.3.6 (y anteriores), son vulnerables a una inyección de comandos del Sistema Operativo por medio de la WebAPI. Una explotación con éxito podría conllevar a una ejecución de código remota por parte de un atacante autenticado. Es requerido un acceso a la consola de administración para una explotación con éxito"
    }
  ],
  "lastModified": "2026-06-17T03:34:40.080",
  "configurations": [
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}