CVE-2026-110765
CVE-2026-110765 · FlexPrice through 2.1.38 QuickBooks Webhook Signature Verification Bypass
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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.
CVSS 8.2 · Alta · EPSS 0,2%
- Publicación
- Actualización
Productos y versiones afectados
flexprice
- Versiones
- ≥ 0, ≤ 2.1.38: Afectada (semver)
Sin corrección publicada
Fuentes originales
- https://hackmd.io/@hieuPenguinnn/flexprice-quickbooks-webhook-signature-bypass
- https://github.com/flexprice/flexprice/blob/f27da32f84ee34bad4bf39a8d887af87fc3f30fc/internal/api/v1/webhook.go#L750
- https://github.com/flexprice/flexprice
- https://www.vulncheck.com/advisories/flexprice-through-2.1.38-quickbooks-webhook-signature-verification-bypass
- https://nvd.nist.gov/vuln/detail/CVE-2026-110765