Security advisory

{
  "id": "6a0e7a39a5a5a9a149fcc36f283491122bfcf8373e80852a013ea3f0d02fc2bd",
  "url": "https://osv.dev/vulnerability/CVE-2021-21255",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-21255",
    "summary": "GLPI is an open-source asset and IT management software package that provides ITIL Service Desk features, licenses tracking and software auditing. In GLPI version 9.5.3, it was possible to switch entities with IDOR from a logged in user. This is fixed in version 9.5.4.",
    "evidence": "osv:CVE-2021-21255",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-21255",
      "aliases": [
        "CVE-2021-21255",
        "GHSA-v3m5-r3mx-ff9j"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/glpi-project/glpi",
              "type": "GIT",
              "events": [
                {
                  "introduced": "54b199dadf73ff97a835a7a3b09a956d9df19b8c"
                },
                {
                  "last_affected": "54b199dadf73ff97a835a7a3b09a956d9df19b8c"
                },
                {
                  "fixed": "aade65b7f67d46f23d276a8acb0df70651c3b1dc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:glpi-project:glpi:9.5.3:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "9.5.3"
                      },
                      {
                        "last_affected": "9.5.3"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "aade65b7f67d46f23d276a8acb0df70651c3b1dc"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "9.5.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-21255.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:27.955956602Z",
      "provider": "osv",
      "references": [
        "https://github.com/glpi-project/glpi/security/advisories/GHSA-v3m5-r3mx-ff9j",
        "https://github.com/glpi-project/glpi/commit/aade65b7f67d46f23d276a8acb0df70651c3b1dc"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-21255",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385391,
  "published_at": "2021-03-02T20:15:14.537+00:00"
}