CVE-2024-58353: critical vulnerability in calcom cal.diy
Cal.com through 4.7.15 Cross-Site Scripting via booking questions
Published · Updated
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28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.3epss 0.4%
Cal.com (repository calcom/cal.diy) in versions <= 4.7.15 is vulnerable to cross-site scripting (XSS) on the publicly accessible single booking view (e.g., /booking/<id>). Booking question (form field) labels are rendered via React's dangerouslySetInnerHTML without proper input sanitization or CSP, so an attacker who can create an event type with a malicious booking question label can inject arbitrary HTML/JavaScript that executes when a victim visits the booking view URL. Self-hosted instances with open registration are particularly at risk. The issue is fixed in version 4.7.16.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L
Affected products
calcom · cal.diyRelated CVEs — calcom cal.diy
In the same product, most dangerous first.
CVE-2025-71389CRITICALCal.com before 5.9.9 Remote Code Execution via RSCEPSS 1.4%CVE-2024-58354HIGHcal.com Repository Takeover via pull_request_target WorkflowEPSS 0.5%CVE-2024-58355CRITICALCal.com through 4.7.15 Cross-Site Scripting via booking questionsEPSS 0.4%CVE-2026-9349MEDIUMcalcom cal.diy Generic React API bookings-single-view.getServerSideProps.tsx getServerSideProps information disclosureEPSS 0.4%CVE-2026-112043MEDIUMcalcom cal.com/cal.diy Webhook util.ts createWebhookProcedure authorizationEPSS 0.4%CVE-2026-63768MEDIUMcal.diy 6.2.0 Conferencing OAuth Callback Open Redirect via Unsigned StateEPSS 0.3%