CVE-2025-66558 | Teknoloji dünyasından en güncel haberleri ve güvenlikle ilgili gelişmeleri takip edin.

Nextcloud Twofactor WebAuthn is the WebAuthn Two-Factor Provider for Nextcloud. Prior to 1.4.2 and 2.4.1, a missing ownership check allowed an attack to take-aw…
Low CVSS: 3.1

CVE-2025-66558

Nextcloud Twofactor WebAuthn is the WebAuthn Two-Factor Provider for Nextcloud. Prior to 1.4.2 and 2.4.1, a missing ownership check allowed an attack to take-away a 2FA webauthn device when correctly guessing a 80-128 character long random string of letters, numbers and symbols. The victim would then be prompted to register a new device on the next login. The attacker can not authenticate as the victim. This vulnerability is fixed in 1.4.2 and 2.4.1.
Vendor
Nextcloud
Product
Two-factor Webauthn
CWE
CWE-639
Yayın Tarihi
2025-12-05 18:15:59
Güncelleme
2025-12-09 16:44:58
Source Identifier
security-advisories@github.com
KEV Date Added
-

Kategoriler

CWE-639 Two-factor Webauthn LOW Nextcloud 2025

Referanslar

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-fr8x-mvjg-wf9q https://github.com/nextcloud/twofactor_webauthn/commit/5d2302166d31ee2e01b2e21556bd5372156da13d https://github.com/nextcloud/twofactor_webauthn/pull/881 https://hackerone.com/reports/3360354