IDOR when marking read a user's channel

{
  "id": "0673cae520d702f11dbf7ae8deba64cea534a76176d92462ca581274db07ecec",
  "url": "https://osv.dev/vulnerability/CVE-2024-43813",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "IDOR when marking read a user's channel",
    "summary": "Mattermost versions 9.5.x <= 9.5.7, 9.10.x <= 9.10.0 fail to enforce proper access controls which allows any authenticated user, including guests, to mark any channel inside any team as read for any user.",
    "evidence": "osv:CVE-2024-43813",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-43813",
      "aliases": [
        "CVE-2024-43813"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mattermost/mattermost",
              "type": "GIT",
              "events": [
                {
                  "introduced": "99d819d25d0b16b3faed901b1fe5c41de7655e9c"
                },
                {
                  "fixed": "43355fe32a953e8b7aa82a9c4cd024311665c098"
                },
                {
                  "introduced": "60c5bb46dfa8192efa5a13c746423f0e7696b8bc"
                },
                {
                  "fixed": "23993132c67b11e5d8a0d0d789b7079868200b63"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "9.5.0"
                      },
                      {
                        "fixed": "9.5.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "9.10.0"
                      },
                      {
                        "fixed": "9.10.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v9.10.1-rc2",
            "v9.5.8-rc1",
            "v9.10.1-rc1",
            "v9.5.7-rc3",
            "v9.5.7",
            "v9.10.0-rc3",
            "v9.10.0",
            "@mattermost/types@9.10.0",
            "@mattermost/client@9.10.0",
            "v9.5.7-rc2",
            "v9.5.7-rc1",
            "v9.5.6",
            "v9.5.6-rc2",
            "v9.5.6-rc1",
            "v9.5.5-rc1",
            "v9.5.5",
            "v9.5.4-rc2",
            "v9.5.4",
            "v9.5.4-rc1",
            "v9.5.3",
            "v9.5.3-rc3",
            "v9.5.3-rc2",
            "v9.5.3-rc1",
            "v9.5.2",
            "v9.5.1-rc1",
            "v9.5.1",
            "v9.5.0-rc3",
            "v9.5.0",
            "@mattermost/types@9.5.0",
            "@mattermost/client@9.5.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-43813.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:26.097257578Z",
      "provider": "osv",
      "references": [
        "https://mattermost.com/security-updates",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/43xxx/CVE-2024-43813.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-43813"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-284"
        ],
        "cna_assigner": "Mattermost",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.10.0"
                  },
                  {
                    "last_affected": "9.10.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          },
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.5.0"
                  },
                  {
                    "last_affected": "9.5.7"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/43xxx/CVE-2024-43813.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-43813",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492664,
  "published_at": "2024-08-22T06:30:58.923+00:00"
}