Description

Cal.com is open-source scheduling software. Prior to 5.9.8, A flaw in the login credentials provider allows an attacker to bypass password verification when a TOTP code is provided, potentially gaining unauthorized access to user accounts. This issue exists due to problematic conditional logic in the authentication flow. This vulnerability is fixed in 5.9.8.

INFO

Published Date :

2025-12-03T19:44:35.303Z

Last Modified :

2025-12-03T21:48:27.861Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2025-66489 vulnerability.

Vendors Products
Cal
  • Cal.com
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-66489.

URL Resource
https://github.com/calcom/cal.com/security/advisories/GHSA-9r3w-4j8q-pw98 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact