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CVE-2025-58351

Estado: AnalizadaMedia (6.8)—

Outline is a service that allows for collaborative documentation. In versions 0.72.0 through 0.83.0, Outline introduced a feature which facilitates local file system storage capabilities as an optional file storage strategy. This feature allowed a CSP bypass as well as a ContentType bypass that might facilitate further attacks. In the case of self-hosting and using Outline FILE_STORAGE=local on the same domain as the Outline application, a malicious payload can be uploaded as a file attachment and bypass those CSP restrictions, allowing script execution within the context of another user. This is fixed in version 0.84.0.

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).

Tecnologías afectadas (1)

Getoutline — Outline

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-58351",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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        "ssvcData": {
          "id": "CVE-2025-58351",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-09-03T13:46:57.802702Z"
        }
      }
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    "cvssMetricV31": [
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          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4,
        "exploitabilityScore": 2.3
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "outline",
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          "versions": [
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              "version": ">= 0.72.0, < 0.84.0"
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  ],
  "published": "2025-09-03T04:16:05.803",
  "references": [
    {
      "url": "https://github.com/outline/outline/commit/18bc93c9c207329244c6909606a2393e863892a3",
      "tags": [
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      "tags": [
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      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/outline/outline/security/advisories/GHSA-gcj7-c9jv-fhgf",
      "tags": [
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      "source": "security-advisories@github.com"
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  "vulnStatus": "Analyzed",
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      "source": "security-advisories@github.com",
      "description": [
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          "value": "CWE-79"
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      "lang": "en",
      "value": "Outline is a service that allows for collaborative documentation. In versions 0.72.0 through 0.83.0, Outline introduced a feature which facilitates local file system storage capabilities as an optional file storage strategy. This feature allowed a CSP bypass as well as a ContentType bypass that might facilitate further attacks. In the case of self-hosting and using Outline FILE_STORAGE=local on the same domain as the Outline application, a malicious payload can be uploaded as a file attachment and bypass those CSP restrictions, allowing script execution within the context of another user. This is fixed in version 0.84.0."
    }
  ],
  "lastModified": "2026-06-17T09:44:20.660",
  "configurations": [
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}