« Volver al listado

CVE-2026-46492

Estado: AnalizadaMedia (6.1)—

md-fileserver allows for local viewing of markdown files in a browser. Prior to version 1.10.3, a cross-site scripting (XSS) vulnerability exists in the application’s Markdown rendering logic. When user-supplied Markdown content is rendered, embedded raw HTML—including <script> tags—is processed and injected into the resulting page without sanitization, allowing arbitrary JavaScript execution in the context of the affected domain. This issue has been patched in version 1.10.3.

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).

Tecnologías afectadas (1)

Commenthol — Md-fileserver

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-46492",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-46492",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-09T18:25:03.113474Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 7.2,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 3.9
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 6.1,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "commenthol",
          "product": "md-fileserver",
          "versions": [
            {
              "status": "affected",
              "version": "< 1.10.3"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-06-09T17:17:33.730",
  "references": [
    {
      "url": "https://github.com/commenthol/md-fileserver/releases/tag/v1.10.3",
      "tags": [
        "Release Notes"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/commenthol/md-fileserver/security/advisories/GHSA-32q2-hhr5-6qvv",
      "tags": [
        "Vendor Advisory",
        "Exploit"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/commenthol/md-fileserver/security/advisories/GHSA-32q2-hhr5-6qvv",
      "tags": [
        "Vendor Advisory",
        "Exploit"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-80"
        },
        {
          "lang": "en",
          "value": "CWE-87"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "md-fileserver allows for local viewing of markdown files in a browser. Prior to version 1.10.3, a cross-site scripting (XSS) vulnerability exists in the application’s Markdown rendering logic. When user-supplied Markdown content is rendered, embedded raw HTML—including <script> tags—is processed and injected into the resulting page without sanitization, allowing arbitrary JavaScript execution in the context of the affected domain. This issue has been patched in version 1.10.3."
    },
    {
      "lang": "es",
      "value": "md-fileserver permite la visualización local de archivos markdown en un navegador. Antes de la versión 1.10.3, existe una vulnerabilidad de cross-site scripting (XSS) en la lógica de renderizado de Markdown de la aplicación. Cuando se renderiza contenido Markdown proporcionado por el usuario, el HTML sin procesar incrustado -incluyendo etiquetas <script>- se procesa y se inyecta en la página resultante sin sanitización, permitiendo la ejecución arbitraria de JavaScript en el contexto del dominio afectado. Este problema ha sido parcheado en la versión 1.10.3."
    }
  ],
  "lastModified": "2026-08-12T17:48:26.667",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:commenthol:md-fileserver:*:*:*:*:*:node.js:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0FC6B2DC-63EC-41F9-8241-02C1FB66CEEF",
              "versionEndExcluding": "1.10.3"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}