CVE-2021-32657

MEDIUM

Nextcloud Server <10.0.11, 20.0.10, 21.0.2 - Info Disclosure

Title source: llm
STIX 2.1

Description

Nextcloud Server is a Nextcloud package that handles data storage. In versions of Nextcloud Server prior to 10.0.11, 20.0.10, and 21.0.2, a malicious user may be able to break the user administration page. This would disallow administrators to administrate users on the Nextcloud instance. The vulnerability is fixed in versions 19.0.11, 20.0.10, and 21.0.2. As a workaround, administrators can use the OCC command line tool to administrate the Nextcloud users.

References (3)

Core 3
Core References
Third Party Advisory x_refsource_misc
https://hackerone.com/reports/1147611
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202208-17

Scores

CVSS v3 4.3
EPSS 0.0049
EPSS Percentile 65.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Details

CWE
CWE-400
Status published
Products (1)
nextcloud/nextcloud_server < 19.0.11
Published Jun 01, 2021
Tracked Since Feb 18, 2026