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CVE-2021-47965

Estado: AplazadaCrítica (9.3)—

WordPress Plugin WP Super Edit 2.5.4 and earlier contains an unrestricted file upload vulnerability in the FCKeditor component that allows attackers to upload dangerous file types without validation. Attackers can upload arbitrary files through the filemanager upload endpoint to achieve remote code execution and complete system compromise.

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).

🎯 Técnicas ATT&CK

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

Vulnerabilidad remota (AV:N, PR:N, UI:N) de carga de ficheros sin validación (CWE-434) en componente web expuesto (FCKeditor). Permite subir ficheros arbitrarios (web shell) y ejecutar código remoto en el servidor WordPress.

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 ManagementDisable or Remove Feature or ProgramVulnerability ScanningUser Account ManagementRestrict Web-Based ContentNetwork Segmentation

Tecnologías afectadas (1)

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

WP Super Edit — WP Super EditAI

CWE

Referencias

JSON original (NVD)

Mostrar
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    ],
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          "attackVector": "NETWORK",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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              "version": "0",
              "versionType": "custom",
              "lessThanOrEqual": "2.5.4"
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  "published": "2026-05-15T19:16:56.163",
  "references": [
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      "url": "https://wordpress.org",
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      "url": "https://wordpress.org/plugins/wp-super-edit/",
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    {
      "url": "https://www.exploit-db.com/exploits/49839",
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    },
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      "url": "https://www.vulncheck.com/advisories/wordpress-plugin-wp-super-edit-unrestricted-file-upload",
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  "vulnStatus": "Deferred",
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  ],
  "lastModified": "2026-06-17T04:18:50.630",
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