Security Advisory

CVE-2024-58355

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-23 21:16:44

Last updated 2026-07-24 21:35:08

Assigner VulnCheck

CVSS score 9.3

State PUBLISHED

Description

Cal.com (calcom/cal.diy) versions through 4.7.15 contain a stored cross-site scripting vulnerability. The single booking view (e.g., https://app.cal.com/booking/<id>) renders booking-question field labels via React's dangerouslySetInnerHTML without sanitizing or escaping user input. An attacker who can create an event type with a malicious booking-question label can inject arbitrary HTML/JavaScript that executes when a victim opens the crafted booking URL. The issue is fixed in v4.7.16.

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