Auth bypass in Hackerone Nextcloud Server

CVE-2018-3775

Improper Authentication in Nextcloud Server prior to version 12.0.3 would allow an attacker that obtained user credentials to bypass the 2 Factor Authentication.

Vulnerability class: Broken Authentication

EPSS: 0.012 (65.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-3775?
CVE-2018-3775 is a high-severity vulnerability in Hackerone Nextcloud Server, classified under Improper Authentication. CVSS score: 8.8/10. Published 2018-08-12.
How severe is CVE-2018-3775?
High severity. CVSS v3 base score is 8.8 out of 10.