MEDIUM 6.5 NVD
CVE-2026-63437
2FAuth is a web app to manage Two-Factor Authentication (2FA) accounts and generate their security codes. Prior to 8.0.0, the recipients() method in app/Api/v1/
2FAuth is a web app to manage Two-Factor Authentication (2FA) accounts and generate their security codes. Prior to 8.0.0, the recipients() method in app/Api/v1/Controllers/TwoFAccountShareController.php receives a caller-selected TwoFAccount through Laravel model binding but does not call the manageShares authorization policy before listing its recipients. When account sharing is enabled, an authenticated user can call GET /api/v1/twofaccounts/{victimId}/recipients for accounts owned by other users, enumerate registered user IDs and display names, test exact email addresses with filter[nameOrEmail], and inspect each account's sharing relationships. This issue is fixed in version 8.0.0.
References
- https://github.com/Bubka/2FAuth/commit/08753afbd847da8fa285e2ad857693ff88e46b84
- https://github.com/Bubka/2FAuth/releases/tag/v8.0.0
- https://github.com/Bubka/2FAuth/security/advisories/GHSA-m52c-63g8-qg5c
This medium severity vulnerability with a CVSS score of 6.5 was published on 2026-11-06 via NVD.
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