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CVE-2023-1647

Improper Access Control in calcom/cal.com

8.8 High

Improper Access Control in GitHub repository calcom/cal.com prior to 2.7.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.84%Up 0.8 points since Mar 27, 2023
90%50%10%1%

What each source reports

CVE List Score used 8.8

Improper Access Control in calcom/cal.com

Improper Access Control in GitHub repository calcom/cal.com prior to 2.7.

Record
CVE-2023-1647
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-284
Updated
2026-11-02
EUVDEUVD-2023-23876 8.8

Improper Access Control in GitHub repository calcom/cal.com prior to 2.7.

Record
EUVD-2023-23876
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-976q-qhh2-p88c 8.8

Improper Access Control in GitHub repository calcom/cal.com prior to 2.7.

Improper Access Control in GitHub repository calcom/cal.com prior to 2.7.

Record
GHSA-976q-qhh2-p88c
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-284
Updated
2026-11-02
NVD 8.8

Improper Access Control in GitHub repository calcom/cal.com prior to 2.7.

Record
CVE-2023-1647
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-284
Updated
2026-11-02
OSV 8.8

Improper Access Control in calcom/cal.com

Improper Access Control in GitHub repository calcom/cal.com prior to 2.7.

Record
CVE-2023-1647
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-284
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-1647 is a high vulnerability (CVSS 8.8) in Cal Cal.com, published March 27, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.84%, the 58th percentile. No source names a fixed version.

References

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