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CVE-2025-54478

Estado: AnalizadaMedia (5.3)—

Mattermost Confluence Plugin version <1.5.0 fails to enforce authentication of the user to the Mattermost instance which allows unauthenticated attackers to edit channel subscriptions via API call to the edit channel subscription endpoint.

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 — Confluence

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2025-54478",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-54478",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-08-11T19:39:55.979664Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "type": "Secondary",
        "source": "responsibledisclosure@mattermost.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
      },
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
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  "affected": [
    {
      "source": "responsibledisclosure@mattermost.com",
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        {
          "repo": "https://github.com/mattermost/mattermost-plugin-confluence/",
          "vendor": "Mattermost",
          "product": "Mattermost Confluence Plugin",
          "versions": [
            {
              "status": "affected",
              "version": "0",
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              "versionType": "semver"
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          "defaultStatus": "unaffected"
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  ],
  "published": "2025-08-11T19:15:30.220",
  "references": [
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      "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-306"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mattermost Confluence Plugin version <1.5.0 fails to enforce authentication of the user to the Mattermost instance which allows unauthenticated attackers to edit channel subscriptions via API call to the edit channel subscription endpoint."
    },
    {
      "lang": "es",
      "value": "La versión &lt;1.5.0 del complemento Mattermost Confluence no logra imponer la autenticación del usuario en la instancia de Mattermost, lo que permite que atacantes no autenticados editen las suscripciones del canal a través de una llamada API al endpoint de edición de suscripción del canal."
    }
  ],
  "lastModified": "2026-06-17T09:40:10.560",
  "configurations": [
    {
      "nodes": [
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          "negate": false,
          "cpeMatch": [
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  "sourceIdentifier": "responsibledisclosure@mattermost.com"
}