CVE-2021-37630 MEDIUM

CVE-2021-37630: Secret Circle can be joined without approval in Nextcloud Circles

Vendor Nextcloud
Product security-advisories
Weakness CWE-639 · IDOR
Published September 7, 2021
Last update August 4, 2024

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Nextcloud Circles is an open source social network built for the nextcloud ecosystem. In affected versions the Nextcloud Circles application allowed any user to join any "Secret Circle" without approval by the Circle owner leaking private information. It is recommended that Nextcloud Circles is upgraded to 0.19.15, 0.20.11 or 0.21.4. There are no workarounds for this issue.

Key dates

02Disclosure timeline

September 7, 2021 CVE published
August 4, 2024 Record updated