GLPI 9.5.7 Username Enumeration Vulnerability via Lost Password Endpoint

{
  "id": "7757eb8a44daa7e0af604c4626d0ed14c4cc2b04e14db070e6ceee7cab1a9ab5",
  "url": "https://osv.dev/vulnerability/CVE-2023-53943",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "GLPI 9.5.7 Username Enumeration Vulnerability via Lost Password Endpoint",
    "summary": "GLPI 9.5.7 contains a username enumeration vulnerability in the lost password recovery mechanism that allows attackers to validate email addresses. Attackers can systematically test email addresses by submitting requests to the password reset endpoint and analyzing response differences to identify valid user accounts.",
    "evidence": "osv:CVE-2023-53943",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2023-53943",
      "aliases": [
        "CVE-2023-53943"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/glpi-project/glpi",
              "type": "GIT",
              "events": [
                {
                  "introduced": "e9b16bc8e9b61ebb2d35b96b9c71cd25c5af9e48"
                },
                {
                  "last_affected": "e9b16bc8e9b61ebb2d35b96b9c71cd25c5af9e48"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:glpi-project:glpi:9.5.7:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "9.5.7"
                      },
                      {
                        "last_affected": "9.5.7"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "9.5.7"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53943.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.203060142Z",
      "provider": "osv",
      "references": [
        "https://glpi-project.org/pt-br/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53943.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-53943",
        "https://www.vulncheck.com/advisories/glpi-username-enumeration-vulnerability-via-lost-password-endpoint",
        "https://www.exploit-db.com/exploits/51418"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-203"
        ],
        "cna_assigner": "VulnCheck",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.5.7"
                  },
                  {
                    "last_affected": "9.5.7"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53943.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-53943",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504501,
  "published_at": "2025-12-18T19:53:36.242+00:00"
}