CVE-2026-9349
calcom cal.diy Generic React API bookings-single-view.getServerSideProps.tsx getServerSideProps information disclosure
- State
- Published
- Severity
- 6.9 Medium
- Published
- May 24, 2026
- Updated
- May 26, 2026
- Reserved
- May 23, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | 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 | VulDB |
| 3.1 | 5.3 Medium | 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 | VulDB |
| 3.0 | 5.3 Medium | 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 | VulDB |
| 2.0 | 5.0 Medium | AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
cal.diycalcom |
|
References
- VDB-365312 | calcom cal.diy Generic React API bookings-single-view.getServerSideProps.tsx getServerSideProps information disclosurevdb-entrytechnical-description
- VDB-365312 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #812177 | cal.com <= v4.9.4 Exposure of Sensitive Information (CWE-200)third-party-advisory
- https://gist.github.com/YLChen-007/b59c44d1550c4b0f373ca4eb1c150994exploit
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