CVE-2024-58355

Summary

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.

Affected Software

VendorProductVersion RangeStatus
calcomcal.diy0 <= 4.7.15affected

Weaknesses

  • CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

References