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CVE-2025-66489
Published: Dec 3, 2025
Modified: Dec 3, 2025
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
calcom | cal.com | affected < 5.9.8 |
Weaknesses (CWE)
References
https://github.com/calcom/cal.com/security/advisories/GHSA-9r3w-4j8q-pw98
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