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CVE-2021-47749

Estado: ModificadaAlta (8.7)—

YouPHPTube <= 7.8 contains a local file inclusion vulnerability that allows unauthenticated attackers to access arbitrary files by manipulating the 'lang' parameter in GET requests. Attackers can exploit the path traversal flaw in locale/function.php to include and view PHP files outside the intended directory by using directory traversal sequences.

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.

AV:N/PR:N/UI:N indica acceso remoto sin privilegios ni interacción. CWE-22 (path traversal) en parámetro GET permite lectura de archivos arbitrarios (T1005). LFI en aplicación web expuesta.

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

Vulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network TrafficApplication Isolation and Sandboxing

Tecnologías afectadas (1)

Youphptube — Youphptube

CWE

Referencias

JSON original (NVD)

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  "published": "2026-01-13T23:15:48.913",
  "references": [
    {
      "url": "https://web.archive.org/web/20170506141644/https://www.youphptube.com/",
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    },
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      "lang": "es",
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  "lastModified": "2026-06-17T04:18:24.987",
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