Nextcloud Server before 10.0.4 and 11.0.2 are vulnerable to disclosure of calendar and addressbook names to other logged-in users. Note that no actual content of the calendar and addressbook has been disclosed.
https://nextcloud.com/security/advisory/?id=nc-sa-2017-012
https://hackerone.com/reports/203594
Source: Mitre, NVD
Published: 2017-05-08
Updated: 2026-06-17
Base Score: 3.5
Vector: CVSS2#AV:N/AC:M/Au:S/C:P/I:N/A:N
Severity: Low
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
EPSS: 0.00126