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CVE-2026-35214

Estado: AnalizadaAlta (8.7)—

Budibase is an open-source low-code platform. Prior to version 3.33.4, the plugin file upload endpoint (POST /api/plugin/upload) passes the user-supplied filename directly to createTempFolder() without sanitizing path traversal sequences. An attacker with Global Builder privileges can craft a multipart upload with a filename containing ../ to delete arbitrary directories via rmSync and write arbitrary files via tarball extraction to any filesystem path the Node.js process can access. This issue has been patched in version 3.33.4.

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 en endpoint remoto que requiere PR:H; permite escritura/eliminación arbitraria de archivos mediante traversal (CWE-22) y acceso a datos del sistema. Exige credenciales de Global Builder, confirmando T1210 sobre red adyacente/privilegiada.

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 ScanningThreat Intelligence ProgramPrivileged Account ManagementNetwork SegmentationEncrypt Sensitive InformationDisable or Remove Feature or Program

Tecnologías afectadas (1)

Budibase — Budibase

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-35214",
  "cveTags": [],
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        "ssvcData": {
          "id": "CVE-2026-35214",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-03T16:04:18.609938Z"
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "NONE"
        },
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        "exploitabilityScore": 2.3
      }
    ]
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      "description": [
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          "value": "CWE-22"
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  "descriptions": [
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      "lang": "en",
      "value": "Budibase is an open-source low-code platform. Prior to version 3.33.4, the plugin file upload endpoint (POST /api/plugin/upload) passes the user-supplied filename directly to createTempFolder() without sanitizing path traversal sequences. An attacker with Global Builder privileges can craft a multipart upload with a filename containing ../ to delete arbitrary directories via rmSync and write arbitrary files via tarball extraction to any filesystem path the Node.js process can access. This issue has been patched in version 3.33.4."
    },
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      "value": "Budibase es una plataforma de código abierto de bajo código. Antes de la versión 3.33.4, el endpoint de carga de archivos del plugin (POST /api/plugin/upload) pasa el nombre de archivo proporcionado por el usuario directamente a createTempFolder() sin sanear las secuencias de salto de ruta. Un atacante con privilegios de Global Builder puede crear una carga multipart con un nombre de archivo que contenga ../ para eliminar directorios arbitrarios a través de rmSync y escribir archivos arbitrarios a través de la extracción de tarball en cualquier ruta del sistema de archivos a la que pueda acceder el proceso de Node.js. Este problema ha sido parcheado en la versión 3.33.4."
    }
  ],
  "lastModified": "2026-07-24T21:10:00.143",
  "configurations": [
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