CVE-2024-58355

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.

CVSS Vector

References

• https://github.com/calcom/cal.diy/commit/00689fda0a30b8f933c096f02c1fe092a4206def
• https://github.com/calcom/cal.diy/security/advisories/GHSA-vgj7-76cw-h6f8
• https://www.vulncheck.com/advisories/cal-com-through-cross-site-scripting-via-booking-questions-2
• https://github.com/calcom/cal.diy/security/advisories/GHSA-vgj7-76cw-h6f8