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CVE-2021-4244

Estado: ModificadaMedia (6.1)—

A vulnerability classified as problematic has been found in yikes-inc-easy-mailchimp-extender Plugin up to 6.8.5. This affects an unknown part of the file admin/partials/ajax/add_field_to_form.php. The manipulation of the argument field_name/merge_tag/field_type/list_id leads to cross site scripting. It is possible to initiate the attack remotely. Upgrading to version 6.8.6 is able to address this issue. The name of the patch is 3662c6593aa1bb4286781214891d26de2e947695. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-215307.

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)

Yikesplugins — Easy Forms FOR Mailchimp

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-4244",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-4244",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-14T17:04:22.068063Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cna@vuldb.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 2.6,
          "attackVector": "NETWORK",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 1.2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.1,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cna@vuldb.com",
      "affectedData": [
        {
          "vendor": "unspecified",
          "product": "yikes-inc-easy-mailchimp-extender Plugin",
          "versions": [
            {
              "status": "affected",
              "version": "6.8.0"
            },
            {
              "status": "affected",
              "version": "6.8.1"
            },
            {
              "status": "affected",
              "version": "6.8.2"
            },
            {
              "status": "affected",
              "version": "6.8.3"
            },
            {
              "status": "affected",
              "version": "6.8.4"
            },
            {
              "status": "affected",
              "version": "6.8.5"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-12-12T14:15:10.400",
  "references": [
    {
      "url": "https://github.com/EvanHerman/yikes-inc-easy-mailchimp-extender/commit/3662c6593aa1bb4286781214891d26de2e947695",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://github.com/EvanHerman/yikes-inc-easy-mailchimp-extender/pull/889",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://github.com/EvanHerman/yikes-inc-easy-mailchimp-extender/releases/tag/6.8.6",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/?id.215307",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://github.com/EvanHerman/yikes-inc-easy-mailchimp-extender/commit/3662c6593aa1bb4286781214891d26de2e947695",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/EvanHerman/yikes-inc-easy-mailchimp-extender/pull/889",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/EvanHerman/yikes-inc-easy-mailchimp-extender/releases/tag/6.8.6",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://vuldb.com/?id.215307",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cna@vuldb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-707"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability classified as problematic has been found in yikes-inc-easy-mailchimp-extender Plugin up to 6.8.5. This affects an unknown part of the file admin/partials/ajax/add_field_to_form.php. The manipulation of the argument field_name/merge_tag/field_type/list_id leads to cross site scripting. It is possible to initiate the attack remotely. Upgrading to version 6.8.6 is able to address this issue. The name of the patch is 3662c6593aa1bb4286781214891d26de2e947695. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-215307."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad ha sido encontrada en yikes-inc-easy-mailchimp-extender Plugin hasta 6.8.5 y clasificada como problemática. Esto afecta a una parte desconocida del archivo admin/partials/ajax/add_field_to_form.php. La manipulación del argumento field_name/merge_tag/field_type/list_id conduce a Cross-Site Scripting. Es posible iniciar el ataque de forma remota. La actualización a la versión 6.8.6 puede solucionar este problema. El nombre del parche es 3662c6593aa1bb4286781214891d26de2e947695. Se recomienda actualizar el componente afectado. El identificador asociado de esta vulnerabilidad es VDB-215307."
    }
  ],
  "lastModified": "2026-06-17T04:19:20.403",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:yikesplugins:easy_forms_for_mailchimp:*:*:*:*:*:wordpress:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3C9C273F-6F98-405E-BD71-8F9193EFC1D9",
              "versionEndExcluding": "6.8.6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cna@vuldb.com"
}