CVE-2026-16736

Estado: AplazadaAlta (7.5)—

The User Registration & Membership WordPress plugin before 5.2.6 does not enforce the site's registration-disabled setting when processing registration-form submissions, allowing unauthenticated users to create new accounts even when the administrator has turned off open registration.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.41%
Percentil entre todas las CVEs puntuadas: 33
Fecha de la puntuación: 6/10/2026

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access85 %
Impacto principalT1136.003 Cloud Accountpersistence80 %

Aplicación web expuesta (WordPress plugin) explotable por red sin autenticación; permite crear cuentas de usuario contravirtiendo la configuración del sitio (CWE-284, control de acceso).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account Management Network Segmentation Vulnerability Scanning Multi-factor Authentication Limit Access to Resource Over Network Filter Network Traffic

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

User Registration Membership — User Registration Membership^AI

CWE

CWE-284

Referencias

https://wpscan.com/vulnerability/dc0d63d6-bcd9-4f14-865a-49d254a831a2/

JSON original (NVD)

Mostrar

{
  "id": "CVE-2026-16736",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-16736",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-05T15:17:51.245263Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "contact@wpscan.com",
      "affectedData": [
        {
          "vendor": "Unknown",
          "product": "User Registration & Membership",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "5.2.6",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-08-05T07:16:36.433",
  "references": [
    {
      "url": "https://wpscan.com/vulnerability/dc0d63d6-bcd9-4f14-865a-49d254a831a2/",
      "source": "contact@wpscan.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
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        }
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    {
      "lang": "en",
      "value": "The User Registration & Membership  WordPress plugin before 5.2.6 does not enforce the site's registration-disabled setting when processing registration-form submissions, allowing unauthenticated users to create new accounts even when the administrator has turned off open registration."
    }
  ],
  "lastModified": "2026-08-26T16:31:16.753",
  "sourceIdentifier": "contact@wpscan.com"
}