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CVE-2025-53514

Estado: AnalizadaMedia (5.9)—

Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to server webhook endpoint with an invalid request body.

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-2025-53514",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-53514",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-08-11T19:36:36.428993Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "responsibledisclosure@mattermost.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "responsibledisclosure@mattermost.com",
      "affectedData": [
        {
          "repo": "https://github.com/mattermost/mattermost-plugin-confluence/",
          "vendor": "Mattermost",
          "product": "Mattermost Confluence Plugin",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.5.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "1.5.0"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-08-11T19:15:29.473",
  "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-754"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to server webhook endpoint with an invalid request body."
    },
    {
      "lang": "es",
      "value": "La versión &lt;1.5.0 del complemento Mattermost Confluence no puede manejar un cuerpo de solicitud inesperado, lo que permite a los atacantes bloquear el complemento mediante un acceso constante al endpoint del webhook del servidor con un cuerpo de solicitud no válido."
    }
  ],
  "lastModified": "2026-06-17T09:38:21.740",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mattermost:confluence:*:*:*:*:*:mattermost:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FA975409-AB8C-4894-A040-D7681CE73598",
              "versionEndExcluding": "1.5.0"
            }
          ],
          "operator": "OR"
        }
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    }
  ],
  "sourceIdentifier": "responsibledisclosure@mattermost.com"
}