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OpenAdvisories
Medium · 5.3 CVE-2026-86838 EUVD-2026-88099GHSA-8vmp-w5gv-wxrj

Bookly < 28.3 - Unauthenticated Payment Bypass via Booking Price Manipulation

Published Sep 28, 2026 · Updated Sep 28, 2026 · Assigned by WPScan

Description

The Bookly WordPress plugin before 28.3 does not validate client-supplied booking quantity values on the server before computing the appointment total, allowing unauthenticated users to reduce the total to zero and book paid services for free while bypassing the payment step.

Affected products

VendorProductAffectedFixed
— Bookly < 28.3 28.3

References