Full name disclosure via team top membership with Show Full Name option disabled

{
  "id": "e1046b783c36baf7ceaba4e6d261280056c1c618dfbee0a95cf3bc13766853b5",
  "url": "https://osv.dev/vulnerability/CVE-2023-5160",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Full name disclosure via team top membership with Show Full Name option disabled",
    "summary": "Mattermost fails to check the Show Full Name option at the /api/v4/teams/TEAM_ID/top/team_members endpoint allowing a member to get the full name of another user even if the Show Full Name option was disabled",
    "evidence": "osv:CVE-2023-5160",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2023-5160",
      "aliases": [
        "CVE-2023-5160"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mattermost/mattermost",
              "type": "GIT",
              "events": [
                {
                  "introduced": "70da7adaff636f074316d05e0b4408f0721eee7b"
                },
                {
                  "fixed": "ccceee77061add55f4ff849d5505fdb3e46b30e2"
                },
                {
                  "introduced": "90f502dc2dc80ee25cfb7d7bc3e743b53564a5a7"
                },
                {
                  "fixed": "69a5120ae293c9e6e3e1109bc3f02d7b659e60d9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.0.0"
                      },
                      {
                        "fixed": "7.8.10"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "8.0.0"
                      },
                      {
                        "fixed": "8.1.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-5160.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:21.296030532Z",
      "provider": "osv",
      "references": [
        "https://mattermost.com/security-updates",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5160.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-5160"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-200"
        ],
        "cna_assigner": "Mattermost",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "last_affected": "7.8.9"
                  },
                  {
                    "last_affected": "8.1.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5160.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-5160",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 487431,
  "published_at": "2023-10-02T10:46:33.153+00:00"
}