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CVE-2025-27571

Estado: AnalizadaMedia (4.3)—

Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to check the "Allow Users to View Archived Channels" configuration when fetching channel metadata of a post from archived channels, which allows authenticated users to access such information when a channel is archived.

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-2025-27571",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-27571",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-16T14:19:48.223409Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "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:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "responsibledisclosure@mattermost.com",
      "affectedData": [
        {
          "vendor": "Mattermost",
          "product": "Mattermost",
          "versions": [
            {
              "status": "affected",
              "version": "10.5.0",
              "versionType": "semver",
              "lessThanOrEqual": "10.5.1"
            },
            {
              "status": "affected",
              "version": "10.4.0",
              "versionType": "semver",
              "lessThanOrEqual": "10.4.3"
            },
            {
              "status": "affected",
              "version": "9.11.0",
              "versionType": "semver",
              "lessThanOrEqual": "9.11.9"
            },
            {
              "status": "unaffected",
              "version": "10.6.0"
            },
            {
              "status": "unaffected",
              "version": "10.5.2"
            },
            {
              "status": "unaffected",
              "version": "10.4.4"
            },
            {
              "status": "unaffected",
              "version": "9.11.10"
            }
          ],
          "defaultStatus": "unaffected"
        }
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  ],
  "published": "2025-04-16T08:15:14.353",
  "references": [
    {
      "url": "https://mattermost.com/security-updates",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "responsibledisclosure@mattermost.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "responsibledisclosure@mattermost.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to check the \"Allow Users to View Archived Channels\" configuration when fetching channel metadata of a post from archived channels, which allows authenticated users to access such information when a channel is archived."
    },
    {
      "lang": "es",
      "value": "Las versiones de Mattermost 10.5.x &lt;= 10.5.1, 10.4.x &lt;= 10.4.3, 9.11.x &lt;= 9.11.9 no marcan la configuración \"Permitir a los usuarios ver canales archivados\" al obtener los metadatos del canal de una publicación de canales archivados, lo que permite que los usuarios autenticados accedan a dicha información cuando un canal está archivado."
    }
  ],
  "lastModified": "2026-06-17T09:03:49.180",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "73837B0A-0874-4B7D-8B09-D3CB7E249EA0",
              "versionEndExcluding": "9.11.10",
              "versionStartIncluding": "9.11.0"
            },
            {
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "192A27FF-9A0C-4123-BCC2-CB0EB2754986",
              "versionEndExcluding": "10.4.4",
              "versionStartIncluding": "10.4.0"
            },
            {
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "681C7A3F-D251-499D-80D4-0D971FA79B2D",
              "versionEndExcluding": "10.5.2",
              "versionStartIncluding": "10.5.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "responsibledisclosure@mattermost.com"
}