CVE-2023-1647 - CVE House
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Status published High CVE-2023-1647

Improper Access Control in calcom/cal.com

Vulnerability Description

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

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from calcom

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CVE-2025-66489
Cal.com Authentication Bypass via bad TOTP + password checks
Critical 9.9
CVE-2023-37919
Cal.com not expiring old sessions after enabling 2FA
Medium 6.5

Affected Vendor

Affected Software

calcom/cal.com
Vulnerable Versions:
unspecified

Timeline

Official Publish: March 27th, 2023
Last Modified: February 19th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-284

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1078 Valid Accounts
Persistence
T1213 Data from Information Repositories
Collection
T1565.002 Stored Data Manipulation
Impact