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CVE-2026-33024

Estado: AnalizadaCrítica (9.3)—

AVideo is a video-sharing Platform. Versions prior to 8.0 contain a Server-Side Request Forgery vulnerability (CWE-918) in the public thumbnail endpoints getImage.php and getImageMP4.php. Both endpoints accept a base64Url GET parameter, base64-decode it, and pass the resulting URL to ffmpeg as an input source without any authentication requirement. The prior validation only checked that the URL was syntactically valid (FILTER_VALIDATE_URL) and started with http(s)://.

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This is insufficient: an attacker can supply URLs such as http://169.254.169.254/latest/meta-data/ (AWS/cloud instance metadata), http://192.168.x.x/, or http://127.0.0.1/ to make the server reach internal network resources. The response is not directly returned (blind), but timing differences and error logs can be used to infer results. The issue has been fixed in version 8.0.

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.

SSRF en endpoint público sin autenticación (AV:N/PR:N/UI:N) permite acceso a recursos internos (AWS metadata, redes privadas) mediante parámetro base64Url manipulado, explotación remota (T1190) con impacto de proxy/salto (T1090.004) y lectura de datos (T1005).

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 ScanningSSL/TLS InspectionPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network Traffic

Tecnologías afectadas (1)

Wwbn — Avideo-encoder

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-33024",
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              "technicalImpact": "total"
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          "version": "2.0.3",
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          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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      "value": "AVideo is a video-sharing Platform. Versions prior to 8.0 contain a Server-Side Request Forgery vulnerability (CWE-918) in the public thumbnail endpoints getImage.php and getImageMP4.php. Both endpoints accept a base64Url GET parameter, base64-decode it, and pass the resulting URL to ffmpeg as an input source without any authentication requirement. The prior validation only checked that the URL was syntactically valid (FILTER_VALIDATE_URL) and started with http(s)://. This is insufficient: an attacker can supply URLs such as http://169.254.169.254/latest/meta-data/ (AWS/cloud instance metadata), http://192.168.x.x/, or http://127.0.0.1/ to make the server reach internal network resources. The response is not directly returned (blind), but timing differences and error logs can be used to infer results. The issue has been fixed in version 8.0."
    },
    {
      "lang": "es",
      "value": "AVideo es una plataforma para compartir videos. Las versiones anteriores a la 8.0 contienen una vulnerabilidad de falsificación de petición del lado del servidor (CWE-918) en los puntos finales públicos de miniaturas getImage.php y getImageMP4.php. Ambos puntos finales aceptan un parámetro GET base64Url, lo decodifican en base64 y pasan la URL resultante a ffmpeg como fuente de entrada sin ningún requisito de autenticación. La validación previa solo verificaba que la URL fuera sintácticamente válida (FILTER_VALIDATE_URL) y comenzara con http(s)://. Esto es insuficiente: un atacante puede proporcionar URLs como http://169.254.169.254/latest/meta-data/ (metadatos de instancia de AWS/nube), http://192.168.x.x/, o http://127.0.0.1/ para hacer que el servidor acceda a recursos de red internos. La respuesta no se devuelve directamente (ciega), pero las diferencias de tiempo y los registros de errores pueden usarse para inferir resultados. El problema ha sido solucionado en la versión 8.0."
    }
  ],
  "lastModified": "2026-06-17T10:36:48.033",
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