{
  "id": "CVE-2023-40703",
  "sourceIdentifier": "responsibledisclosure@mattermost.com",
  "published": "2023-11-27T10:15:07.460",
  "lastModified": "2024-11-21T08:19:59.620",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing\u00a0a attacker to\u00a0consume excessive resources, possibly leading to Denial of Service, by\u00a0patching the field of a block using a specially crafted string.\u00a0\n\n"
    },
    {
      "lang": "es",
      "value": "Mattermost no logra limitar adecuadamente los caracteres permitidos en diferentes campos de un bloque en Mattermost Boards, lo que permite a un atacante consumir recursos excesivos, lo que posiblemente lleve a una Denegaci\u00f3n de Servicio, al parchear el campo de un bloque usando una cadena especialmente manipulada."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "responsibledisclosure@mattermost.com",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      },
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "responsibledisclosure@mattermost.com",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    },
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "7.8.12",
              "matchCriteriaId": "BAEFCB9C-4CFC-4C2D-B53D-4A1E9B54E744"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "8.0.0",
              "versionEndIncluding": "8.1.3",
              "matchCriteriaId": "7CFE72E8-D2A6-4994-88F6-2B04DB413631"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "9.0.0",
              "versionEndIncluding": "9.0.1",
              "matchCriteriaId": "DF5E1B7D-7237-4464-9873-0A85C80CC76A"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:mattermost:mattermost:9.1.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "9D960BDC-FB30-4112-B1CC-219D1EC32145"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://mattermost.com/security-updates",
      "source": "responsibledisclosure@mattermost.com",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://mattermost.com/security-updates",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}