Nextcloud Desktop Client before 3.3.1 is vulnerable to improper certificate validation due to lack of SSL certificate verification when using the "Register with a Provider" flow.
https://www.debian.org/security/2021/dsa-4974
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qpgp-vf4p-wcw5
https://github.com/nextcloud/desktop/releases/tag/v3.1.3
https://github.com/nextcloud/desktop/pull/2926
https://hackerone.com/reports/903424
Source: Mitre, NVD
Published: 2021-06-11
Updated: 2024-11-21
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 5.9
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS: 0.00364