CVE-2026-9349CWE-200CWE-284

calcom cal.diy Generic React API bookings-single-view.getServerSideProps.tsx getServerSideProps information disclosure

Medium · published May 24, 2026

CVSS v4.0
6.9
EPSS
1%
Percentile
43.7
In the wild
Unconfirmed
What it is

A vulnerability was determined in calcom cal.diy up to 4.9.4. Affected by this issue is the function getServerSideProps of the file apps/web/modules/bookings/views/bookings-single-view.getServerSideProps.tsx of the component Generic React API. This manipulation of the argument cancelledBy/rescheduledBy causes information disclosure. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
EPSS
0.00525 · 43.7th percentile
Weaknesses
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor; CWE-284 · Improper Access Control
Published
2026-05-24T02:30Z
EPSS history
Timeline
  • 24 MAY 02:30Z
    calcom cal.diy Generic React API bookings-single-view.getServerSideProps.tsx getServerSideProps information disclosure
    cvelistv5