GHSA-C253-8HR4-R8V9

Vulnerability from github – Published: 2022-05-24 17:21 – Updated: 2026-01-12 20:16
VLAI?
Summary
Mattermost Server exposes private team invite ID
Details

An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. It allows attackers to discover a team invite ID by requesting a JSON document.

Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/mattermost/mattermost-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.10.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/mattermost/mattermost-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.0.0"
            },
            {
              "fixed": "4.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2017-18901"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-12T20:16:26Z",
    "nvd_published_at": "2020-06-19T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. It allows attackers to discover a team invite ID by requesting a JSON document.",
  "id": "GHSA-c253-8hr4-r8v9",
  "modified": "2026-01-12T20:16:26Z",
  "published": "2022-05-24T17:21:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-18901"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/5e822a7d09214d5446d54e02a0611df8e64f3aa5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/638c38cc0d2296335a0fbd5bde8b6d2cbf9f9062"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/a78ed923f1c73ae5551893374fb9803ee2f4c8e6"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mattermost/mattermost"
    },
    {
      "type": "WEB",
      "url": "https://mattermost.com/security-updates"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Mattermost Server exposes private team invite ID "
}


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