CVE-2025-55073

{
  "id": "CVE-2025-55073",
  "sourceIdentifier": "[email protected]",
  "published": "2025-11-14T08:15:45.687",
  "lastModified": "2026-10-19T13:10:00.110",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11, 10.12.x <= 10.12.0 fail to validate the relationship between the post being updated and the MSTeams plugin OAuth flow which allows an attacker to edit arbitrary posts via a crafted MSTeams plugin OAuth redirect URL."
    },
    {
      "lang": "es",
      "value": "Las versiones de Mattermost 10.11.x menor o igual que 10.11.3, 10.5.x menor o igual que 10.5.11, 10.12.x menor o igual que 10.12.0 no validan la relación entre la publicación que se está actualizando y el flujo OAuth del plugin de MSTeams, lo que permite a un atacante editar publicaciones arbitrarias a través de una URL de redirección OAuth del plugin de MSTeams manipulada."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Mattermost",
          "product": "Mattermost",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "10.11.0",
              "lessThanOrEqual": "10.11.3",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "10.5.0",
              "lessThanOrEqual": "10.5.11",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "10.12.0",
              "lessThanOrEqual": "10.12.0",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "11.0.0",
              "status": "unaffected"
            },
            {
              "version": "10.11.4",
              "status": "unaffected"
            },
            {
              "version": "10.5.12",
              "status": "unaffected"
            },
            {
              "version": "10.12.1",
              "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:N/I:L/A:L",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5
      },
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-11-14T15:46:46.741736Z",
          "id": "CVE-2025-55073",
          "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-306"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "10.5.0",
              "versionEndExcluding": "10.5.12",
              "matchCriteriaId": "CCE1652A-13F7-4934-9F90-28129BAEE240"
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  "references": [
    {
      "url": "https://mattermost.com/security-updates",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}