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CVE-2021-4073

Estado: ModificadaAlta (8.1)—💥 Exploit

The RegistrationMagic WordPress plugin made it possible for unauthenticated users to log in as any site user, including administrators, if they knew a valid username on the site due to missing identity validation in the social login function social_login_using_email() of the plugin. This affects versions equal to, and less than, 5.0.1.7.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Tecnologías afectadas (1)

Metagauss — Registrationmagic

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-4073",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2021-4073",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
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              "technicalImpact": "total"
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        "obtainAllPrivilege": false,
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        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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    "cvssMetricV31": [
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        "type": "Secondary",
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          "scope": "UNCHANGED",
          "version": "3.1",
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          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
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      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@wordfence.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ]
    }
  ],
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    {
      "lang": "en",
      "value": "The RegistrationMagic WordPress plugin made it possible for unauthenticated users to log in as any site user, including administrators, if they knew a valid username on the site due to missing identity validation in the social login function social_login_using_email() of the plugin. This affects versions equal to, and less than, 5.0.1.7."
    },
    {
      "lang": "es",
      "value": "El plugin RegistrationMagic de WordPress permitía a usuarios no autenticados iniciar sesión como cualquier usuario del sitio, incluidos los administradores, si conocían un nombre de usuario válido en el sitio debido a una falta de comprobación de la identidad en la función login social social_login_using_email() del plugin. Esto afecta a las versiones iguales y menores a 5.0.1.7"
    }
  ],
  "lastModified": "2026-06-17T04:18:59.610",
  "configurations": [
    {
      "nodes": [
        {
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          "cpeMatch": [
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  "sourceIdentifier": "security@wordfence.com"
}