GHSA-8QG8-C7MW-6FJ7

Vulnerability from github – Published: 2022-05-24 17:21 – Updated: 2025-11-20 21:02
VLAI?
Summary
Mattermost Server is vulnerable to Directory Traversal by System Admins
Details

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can achieve directory traversal.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/mattermost/mattermost-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.2-0.20171004201910-6be8113eb60"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/mattermost/mattermost-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.2.0-rc1"
            },
            {
              "fixed": "4.2.1-0.20171004194140-6d3cb2ce07fc"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/mattermost/mattermost-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.3.0-rc1"
            },
            {
              "fixed": "4.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2017-18874"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-11-20T21:02:47Z",
    "nvd_published_at": "2020-06-19T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can achieve directory traversal.",
  "id": "GHSA-8qg8-c7mw-6fj7",
  "modified": "2025-11-20T21:02:48Z",
  "published": "2022-05-24T17:21:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-18874"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/6be8113eb60cf5ddd2dc1c3f4db05cae0c183086"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/6d3cb2ce07fc799832081e93843b405b390057fa"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mattermost/mattermost/commit/fadd9514f6e71590aba781a7035e1de4150137b0"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mattermost/mattermost"
    },
    {
      "type": "WEB",
      "url": "https://mattermost.com/security-updates"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Mattermost Server is vulnerable to Directory Traversal by System Admins"
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.