CVE-2024-58355 — Cal.com through 4.7.15 Cross-Site Scripting via booking questions
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 bo…
Published: 2026-07-23 · CVSS: 9.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7