CVE-2021-38299
Improper Access Control in Webauthn Framework
9.8
CRITICAL
CVSS 3.1
EPSS 1.7%
Description
Webauthn Framework 3.3.x before 3.3.4 has Incorrect Access Control. An attacker that controls a user's system is able to login to a vulnerable service using an attached FIDO2 authenticator without passing a check of the user presence.
How to fix CVE-2021-38299
To remediate CVE-2021-38299, upgrade the affected package to a fixed version below.
- Packagist/web-auth/webauthn-framework—upgrade to 3.3.4 or later
Is CVE-2021-38299 being exploited?
Low — EPSS is 1.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 3.3.0, < 3.3.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |