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CVE-2025-6465

Estado: AnalizadaMedia (4.3)—

Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 fail to sanitize file names which allows users with file upload permission to overwrite file attachment thumbnails via path traversal in file streaming APIs.

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)

Mattermost — Mattermost Server

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-6465",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2025-6465",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-08-21T17:21:02.910833Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "source": "responsibledisclosure@mattermost.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
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        "exploitabilityScore": 2.8
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  },
  "affected": [
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      "affectedData": [
        {
          "vendor": "Mattermost",
          "product": "Mattermost",
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              "status": "affected",
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              "versionType": "semver",
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            },
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              "status": "affected",
              "version": "10.5.0",
              "versionType": "semver",
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            },
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              "status": "affected",
              "version": "10.10.0",
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              "status": "affected",
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              "status": "unaffected",
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  "published": "2025-08-21T17:15:32.707",
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      "tags": [
        "Vendor Advisory"
      ],
      "source": "responsibledisclosure@mattermost.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "type": "Secondary",
      "source": "responsibledisclosure@mattermost.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
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      "value": "Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 10.10.x <= 10.10.0, 10.9.x <= 10.9.3 fail to sanitize file names which allows users with file upload permission to overwrite file attachment thumbnails via path traversal in file streaming APIs."
    },
    {
      "lang": "es",
      "value": "Las versiones de Mattermost 10.8.x &lt;= 10.8.3, 10.5.x &lt;= 10.5.8, 10.10.x &lt;= 10.10.0, 10.9.x &lt;= 10.9.3 no pueden depurar los nombres de archivos, lo que permite a los usuarios con permiso de carga de archivos sobrescribir las miniaturas de los archivos adjuntos mediante el path traversal en las API de transmisión de archivos."
    }
  ],
  "lastModified": "2026-06-17T10:01:57.020",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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}