Audit logging fails to sanitize post metadata

{
  "id": "1845c433e001a02ef530e777d7af1e4eafccaceae5fc3cc895385ca8e4a95626",
  "url": "https://osv.dev/vulnerability/CVE-2023-4108",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Audit logging fails to sanitize post metadata",
    "summary": "Mattermost fails to sanitize post metadata during audit logging resulting in permalinks contents being logged",
    "evidence": "osv:CVE-2023-4108",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2023-4108",
      "aliases": [
        "CVE-2023-4108",
        "GHSA-9rww-66w7-7vjx"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/mattermost/mattermost",
              "type": "GIT",
              "events": [
                {
                  "introduced": "f14c24391ca84740d90a29ec8b67579326eaa236"
                },
                {
                  "fixed": "f11ff320ca535bce41c999802d611035a3f17000"
                },
                {
                  "introduced": "c4d8c1450ab2b9538bbc2690ca1ee865567a5888"
                },
                {
                  "fixed": "d0e672d94dee73d2cbe83603beda0852b2d04856"
                },
                {
                  "introduced": "5b33575d571469115f29720530ff5b53a6cb7de5"
                },
                {
                  "fixed": "f4bc16bc8d7890dad21cae3073663d6911320a96"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.8.0"
                      },
                      {
                        "fixed": "7.8.8"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.9.0"
                      },
                      {
                        "fixed": "7.9.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "7.10.0"
                      },
                      {
                        "fixed": "7.10.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v7.8.7",
            "v7.9.5",
            "v7.10.3",
            "v7.8.6",
            "v7.10.2",
            "v7.8.5",
            "v7.9.4",
            "v7.10.1",
            "v7.9.3",
            "v7.8.4",
            "v7.10.0",
            "v7.9.2",
            "v7.8.3",
            "v7.9.1",
            "v7.8.2",
            "v7.9.0",
            "v7.8.1",
            "v7.8.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-4108.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.318088202Z",
      "provider": "osv",
      "references": [
        "https://mattermost.com/security-updates",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4108.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-4108"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-532"
        ],
        "cna_assigner": "Mattermost",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "last_affected": "7.8.7"
                  },
                  {
                    "last_affected": "7.9.5"
                  },
                  {
                    "last_affected": "7.10.3"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/4xxx/CVE-2023-4108.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-4108",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497312,
  "published_at": "2023-08-11T06:12:33.792+00:00"
}