VULNERABILITY INTELLIGENCE
CVE-2024-58355
CVSS score9.3 CRITICAL
EPSS probability0.41%
CISA KEVNot currently listed
Published2026-07-23
Last modified2026-07-30
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L
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.
Weakness classification
- CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)