VULNERABILITY INTELLIGENCE

CVE-2026-16624

CVSS score9.6 CRITICAL

EPSS probability0.36%

CISA KEVNot currently listed

Published2026-07-22

Last modified2026-10-24

Description

Cal.com OSS ships lacks authorization on webhook teamId creation, allowing any authenticated user to create a webhook on any team via unvalidated teamId injection, then steal booking data, including fields like organizer/attendee emails and custom responses, and conditionally video-call passwords, by triggering webhook delivery.