CVEvulnerability
CVE-2021-37630
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-09-07
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 4.0 MEDIUM — AV:N/AC:L/Au:S/C:P/I:N/A:N
- Weaknesses
- CWE-639
Description
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.
Affected configurations
• nextcloud circles (< 0.19.5)
• nextcloud circles (>= 0.20.0 < 0.20.11)
• nextcloud circles (>= 0.21.0 < 0.21.4)
Related
Weakness · CWE (1)
- CWE-639 Authorization Bypass Through User-Controlled Key weakness
References
- https://github.com/nextcloud/circles/pull/768 Patch, Third Party Advisory
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm Third Party Advisory
- https://hackerone.com/reports/1257624 Permissions Required, Third Party Advisory
- https://github.com/nextcloud/circles/pull/768 Patch, Third Party Advisory
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm Third Party Advisory
- https://hackerone.com/reports/1257624 Permissions Required, Third Party Advisory