CVE-2025-13767

{
  "id": "CVE-2025-13767",
  "sourceIdentifier": "[email protected]",
  "published": "2025-12-24T08:15:45.553",
  "lastModified": "2026-10-19T22:10:00.130",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 fails to validate user channel membership when attaching Mattermost posts as comments to Jira issues, which allows an authenticated attacker with access to the Jira plugin to read post content and attachments from channels they do not have access to."
    },
    {
      "lang": "es",
      "value": "Mattermost versiones 11.1.x hasta la versión 11.1.0 incluida, 11.0.x hasta la versión 11.0.5 incluida, 10.12.x hasta la versión 10.12.3 incluida y 10.11.x hasta la versión 10.11.7 incluida no valida la pertenencia del usuario al canal al adjuntar publicaciones de Mattermost como comentarios en incidencias de Jira, lo que permite a un atacante autenticado con acceso al plugin de Jira leer el contenido de las publicaciones y sus adjuntos de canales a los que no tiene acceso."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Mattermost",
          "product": "Mattermost",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "11.1.0",
              "lessThanOrEqual": "11.1.0",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "11.0.0",
              "lessThanOrEqual": "11.0.5",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "10.12.0",
              "lessThanOrEqual": "10.12.3",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "10.11.0",
              "lessThanOrEqual": "10.11.7",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "11.2.0",
              "status": "unaffected"
            },
            {
              "version": "11.1.1",
              "status": "unaffected"
            },
            {
              "version": "11.0.6",
              "status": "unaffected"
            },
            {
              "version": "10.12.4",
              "status": "unaffected"
            },
            {
              "version": "10.11.8",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-12-24T16:36:10.970492Z",
          "id": "CVE-2025-13767",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "10.11.0",
              "versionEndExcluding": "10.11.8",
              "matchCriteriaId": "7B0477E2-8999-4E1D-9E6B-7A818CB76488"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "10.12.0",
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              "matchCriteriaId": "B83EB4C3-5E75-4BD1-94F3-ED29D329E5C4"
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              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "11.0.0",
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              "versionStartIncluding": "11.1.0",
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  ],
  "references": [
    {
      "url": "https://mattermost.com/security-updates",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}