CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NCVE-2021-37630
Medium (6.5) in nextcloud circles. EPSS 1.2% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)
- CWE
- CWE-639
- Published
- Modified
- Record from
- the NVD, synced
Affected
- nextcloud:circles
References
- https://github.com/nextcloud/circles/pull/768
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm
- https://hackerone.com/reports/1257624
- https://github.com/nextcloud/circles/pull/768
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-56j9-3rj4-wvgm