NexoPOS through 6.2.4 Unauthenticated Transaction Disclosure via /api/fields Endpoint

{
  "id": "740c783e1163aa3de9a2f65d6a9375cd088e5150133c523fef3581dc5f22e67c",
  "url": "https://osv.dev/vulnerability/CVE-2026-111637",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "NexoPOS through 6.2.4 Unauthenticated Transaction Disclosure via /api/fields Endpoint",
    "summary": "NexoPOS through 6.2.4 contains a missing authentication vulnerability that allows unauthenticated attackers to read accounting transaction records via GET /api/fields/{resource}/{identifier}. Attackers can request transaction field classes like ns.entity-transaction with sequential ids to retrieve names, values, account ids, and descriptions without nexopos.read.transactions permission.",
    "evidence": "osv:CVE-2026-111637",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-111637",
      "aliases": [
        "CVE-2026-111637"
      ],
      "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/blair2004/nexopos",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "488573a38503940031a447ac2e5850ff76ca2047"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "6.2.4"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "6.2.4"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v6.2.4",
            "v6.2.3",
            "v6.0.0",
            "v5.3.7",
            "v5.3.6",
            "v5.3.4",
            "v5.3.3",
            "v5.3.2",
            "v5.3.1",
            "v5.3.0",
            "v5.2.7",
            "v5.2.6",
            "v5.2.4",
            "v5.2.4-b3",
            "v5.2.4-b2",
            "v5.2.4-b1",
            "v5.2.3",
            "v5.2.1",
            "v5.1.0",
            "v5.0.0-beta.2",
            "v5.0.0-beta-1",
            "v4.7.4",
            "v4.7.0",
            "v4.6.12",
            "v4.6.8",
            "v4.6.7",
            "v4.6.2",
            "v4.6.1",
            "v4.5.5",
            "v4.5.4",
            "v4.5.3",
            "v4.5.2",
            "v4.5.0",
            "v4.4.2",
            "v4.4.1",
            "v4.4.0",
            "v4.3.2",
            "v4.3.1",
            "v4.3.0",
            "v4.1.2",
            "v4.1.1",
            "v4.1.0",
            "v4.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111637.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.630159208Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111637.json",
        "https://hackmd.io/@hieuPenguinnn/nexopos-fields-endpoint-unauthenticated-transaction-disclosure",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-111637",
        "https://www.vulncheck.com/advisories/nexopos-through-6.2.4-unauthenticated-transaction-disclosure-via-api-fields-endpoint",
        "https://github.com/Blair2004/NexoPOS",
        "https://github.com/Blair2004/NexoPOS/blob/v6.2.4/app/Providers/FormsProvider.php#L126-L152",
        "https://github.com/Blair2004/NexoPOS/blob/v6.2.4/routes/api-base.php#L10-L18"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-306"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111637.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-111637",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 496742,
  "published_at": "2026-10-16T17:39:08.931+00:00"
}