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PSR-2026-001MediumReportedPatchstack

Capacity-limit bypass in an online booking system

An online booking system does not fully enforce the capacity of a time slot. As a result, an already fully booked slot can be booked again without authentication (overbooking). Reported via Patchstack, where the same issue had already been reported earlier (duplicate). Technical details will follow once a fix is available.

Category
Broken access control
Product type
Booking extension for a content management system
Vendor
not yet public
Reported via
Patchstack
Status on the platform
Duplicate

Timeline

  1. Reported21/10/2026
  2. Fixedopen
  3. Disclosure19/01/2027

Technical details will be published once a fix is available, at the latest by the end of the disclosure period.

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