CVE-2025-27776

Estado: AnalizadaAlta (8.8)—

Applio is a voice conversion tool. Versions 3.2.7 and prior are vulnerable to server-side request forgery (SSRF) and file write in `model_download.py` (line 240 in 3.2.7). The blind SSRF allows for sending requests on behalf of Applio server and can be leveraged to probe for other vulnerabilities on the server itself or on other back-end systems on the internal network, that the Applio server can reach.

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The blind SSRF can also be coupled with the arbitrary file read CVE-2025-27784 to read files from hosts on the internal network, that the Applio server can reach, which would make it a full SSRF. The file write allows for writing files on the server, which can be coupled with other vulnerabilities, for example an unsafe deserialization, to achieve remote code execution on the Applio server. As of time of publication, no known patches are available.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Puntuación base: 8.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.58%
Percentil entre todas las CVEs puntuadas: 46
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 principalT1090 Proxycommand and control90 %
Impacto secundarioT1005 Data from Local Systemcollection75 %
Impacto secundarioT1565.001 Stored Data Manipulationimpact70 %

SSRF en endpoint de descarga remota sin autenticación (AV:N, PR:N, UI:N). Permite proxying de tráfico interno, lectura de archivos acoplado a CVE-2025-27784, y escritura de ficheros (posible RCE vía deserialization).

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

Filter Network Traffic Vulnerability Scanning SSL/TLS Inspection Restrict File and Directory Permissions Privileged Account Management Remote Data Storage

Tecnologías afectadas (1)

Applio — Applio

CWE

CWE-918

Referencias

JSON original (NVD)

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  "id": "CVE-2025-27776",
  "cveTags": [],
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          "role": "CISA Coordinator",
          "options": [
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              "automatable": "yes"
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              "technicalImpact": "total"
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          "version": "2.0.3",
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          "integrityRequirement": "NOT_DEFINED",
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          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
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          "modifiedAttackRequirements": "NOT_DEFINED",
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          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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  "published": "2025-03-19T21:15:39.470",
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      "url": "https://github.com/IAHispano/Applio/blob/29b4a00e4be209f9aac51cd9ccffcc632dfb2973/assets/flask/routes.py#L14",
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      "tags": [
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      "source": "security-advisories@github.com"
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      "description": [
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      "lang": "en",
      "value": "Applio is a voice conversion tool. Versions 3.2.7 and prior are vulnerable to server-side request forgery (SSRF) and file write in `model_download.py` (line 240 in 3.2.7). The blind SSRF allows for sending requests on behalf of Applio server and can be leveraged to probe for other vulnerabilities on the server itself or on other back-end systems on the internal network, that the Applio server can reach. The blind SSRF can also be coupled with the arbitrary file read CVE-2025-27784 to read files from hosts on the internal network, that the Applio server can reach, which would make it a full SSRF. The file write allows for writing files on the server, which can be coupled with other vulnerabilities, for example an unsafe deserialization, to achieve remote code execution on the Applio server. As of time of publication, no known patches are available."
    },
    {
      "lang": "es",
      "value": "Applio es una herramienta de conversión de voz. Las versiones 3.2.7 y anteriores son vulnerables a server-side request forgery (SSRF) y a la escritura de archivos en `model_download.py` (línea 240 en 3.2.7). La SSRF ciega permite enviar solicitudes en nombre del servidor Applio y puede utilizarse para investigar otras vulnerabilidades en el propio servidor o en otros sistemas back-end de la red interna a los que el servidor Applio puede acceder. La SSRF ciega también puede combinarse con la lectura arbitraria de archivos CVE-2025-27784 para leer archivos de hosts de la red interna a los que el servidor Applio puede acceder, lo que la convertiría en una SSRF completa. La escritura de archivos permite escribir archivos en el servidor, lo que puede combinarse con otras vulnerabilidades, como una deserialización insegura, para lograr la ejecución remota de código en el servidor Applio. Al momento de la publicación, no se conocían parches disponibles."
    }
  ],
  "lastModified": "2026-06-17T09:04:12.287",
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