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CVE-2024-58353

Cal.com through 4.7.15 Cross-Site Scripting via booking questions

Published: Jul 23, 2026Updated: Jul 24, 2026 Sources: CVE List NVDCWE-80
8.9HIGH
NVD MITRE
EPSS Score
0.3%
Top 78.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:CC:HI:HA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:LAvailability
Low
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Weaknesses

CWE-80

Affected Products

calcom
commercialaka cal.com
cal.diySaaS
Cloud & SaaS / saas-application

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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References

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

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