Improper authorization in the Circles app 0.17.7 causes retaining access when an email address was removed from a circle.
https://nextcloud.com/security/advisory/?id=NC-SA-2019-013
https://hackerone.com/reports/673724
Source: Mitre, NVD
Published: 2020-02-04
Updated: 2026-06-17
Base Score: 4
Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N
Severity: Medium
Base Score: 4.3
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.00135