{"schema":"threatline.record/2","record":{"id":"CVE-2026-110765","aliases":[],"summary":"FlexPrice through 2.1.38 QuickBooks Webhook Signature Verification Bypass","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.","categories":["Unclassified"],"product":"flexprice","vendor":"flexprice","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-110765","source_modified_at":"2026-10-14T18:47:41.613Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"flexprice","vendor":"flexprice","versions":[{"version":"0","lessThanOrEqual":"2.1.38","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":8.2,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00225,"percentile":0.12515,"score_date":"2026-10-23"},"published_at":"2026-10-14T18:47:41.613Z","modified_at":"2026-10-14T18:47:41.613Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-110765","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-14T18:47:41.613Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-110765","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://hackmd.io/@hieuPenguinnn/flexprice-quickbooks-webhook-signature-bypass","tags":["technical-description","exploit"]},{"source":"CVE List","url":"https://github.com/flexprice/flexprice/blob/f27da32f84ee34bad4bf39a8d887af87fc3f30fc/internal/api/v1/webhook.go#L750","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/flexprice/flexprice","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/flexprice-through-2.1.38-quickbooks-webhook-signature-verification-bypass","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-14T18:47:41.613Z","content_hash":"c71dc3348f43c94281f9755f47f104bb55a6216fc27f5c541b56afad39b85c68"}}