CVE-2026-16624

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CVSS 3.1

9.6 critical

EPSS

<1%p20

Published

Jul 22, 2026 (Jul 22, 2026)

Modified

Jul 27, 2026

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.

Weakness: CWE-639
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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