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CVE Vulnerability Details :
CVE-2026-9349
PUBLISHED
More InfoOfficial Page
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
View Known Exploited Vulnerability (KEV) details
Published At-24 May, 2026 | 02:30
Updated At-24 May, 2026 | 02:30
Rejected At-
▼CVE Numbering Authority (CNA)
calcom cal.diy Generic React API bookings-single-view.getServerSideProps.tsx getServerSideProps information disclosure

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.

Affected Products
Vendor
calcom
Product
cal.diy
CPEs
  • cpe:2.3:a:calcom:cal.diy:*:*:*:*:*:*:*:*
Modules
  • Generic React API
Versions
Affected
  • 4.9.0
  • 4.9.1
  • 4.9.2
  • 4.9.3
  • 4.9.4
Problem Types
TypeCWE IDDescription
CWECWE-200Information Disclosure
CWECWE-284Improper Access Controls
Type: CWE
CWE ID: CWE-200
Description: Information Disclosure
Type: CWE
CWE ID: CWE-284
Description: Improper Access Controls
Metrics
VersionBase scoreBase severityVector
4.06.9MEDIUM
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
3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
3.05.3MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
2.05.0N/A
AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR
Version: 4.0
Base score: 6.9
Base severity: 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
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
Version: 3.0
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
Version: 2.0
Base score: 5.0
Base severity: N/A
Vector:
AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
reporter
Eric-z (VulDB User)
coordinator
VulDB CNA Team
Timeline
EventDate
Advisory disclosed2026-05-23 00:00:00
VulDB entry created2026-05-23 02:00:00
VulDB entry last update2026-05-23 11:17:45
Event: Advisory disclosed
Date: 2026-05-23 00:00:00
Event: VulDB entry created
Date: 2026-05-23 02:00:00
Event: VulDB entry last update
Date: 2026-05-23 11:17:45
Replaced By
Rejected Reason
References
HyperlinkResource
https://vuldb.com/vuln/365312
vdb-entry
technical-description
https://vuldb.com/vuln/365312/cti
signature
permissions-required
https://vuldb.com/submit/812177
third-party-advisory
https://gist.github.com/YLChen-007/b59c44d1550c4b0f373ca4eb1c150994
exploit
Hyperlink: https://vuldb.com/vuln/365312
Resource:
vdb-entry
technical-description
Hyperlink: https://vuldb.com/vuln/365312/cti
Resource:
signature
permissions-required
Hyperlink: https://vuldb.com/submit/812177
Resource:
third-party-advisory
Hyperlink: https://gist.github.com/YLChen-007/b59c44d1550c4b0f373ca4eb1c150994
Resource:
exploit
Details not found