{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "2.1.38"
              },
              {
                "fixed": "2.1.38"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "f27da32f84ee34bad4bf39a8d887af87fc3f30fc"
            }
          ],
          "repo": "https://github.com/flexprice/flexprice",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-347"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110765.json"
  },
  "details": "FlexPrice through 2.1.38 contains an authentication bypass vulnerability in HandleQuickBooksWebhook that skips signature verification when the intuit-signature header is omitted. Unauthenticated attackers knowing a tenant and environment ID can replay forged payment notifications to repeatedly add payment amounts, marking invoices paid or overpaid.",
  "id": "CVE-2026-110765",
  "modified": "2026-10-17T02:30:50.537170160Z",
  "published": "2026-10-14T18:47:41.613Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110765.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110765"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/flexprice-through-2.1.38-quickbooks-webhook-signature-verification-bypass"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/flexprice/flexprice"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/flexprice/flexprice/blob/f27da32f84ee34bad4bf39a8d887af87fc3f30fc/internal/api/v1/webhook.go#L750"
    },
    {
      "type": "EVIDENCE",
      "url": "https://hackmd.io/@hieuPenguinnn/flexprice-quickbooks-webhook-signature-bypass"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "FlexPrice through 2.1.38 QuickBooks Webhook Signature Verification Bypass"
}