CVE-2020-8236

MediumCVSS 6.8/10Last modified Jun 17, 2026

Description

A wrong configuration in Nextcloud Server 19.0.1 incorrectly made the user feel the passwordless WebAuthn is also a two factor verification by asking for the PIN of the passwordless WebAuthn but not verifying it.

Metrics

CVSS 3.1 6.8/10CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-287

Affected software

Vendor	Product	Versions
n/a	Nextcloud Server	19.0.2

References

https://hackerone.com/reports/924393Exploit, Third Party Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2020-037Broken Link, Vendor Advisory
https://hackerone.com/reports/924393Exploit, Third Party Advisory
https://nextcloud.com/security/advisory/?id=NC-SA-2020-037Broken Link, Vendor Advisory

Timeline

Published: Nov 2, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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