A logic error in Nextcloud Server 19.0.0 caused a privilege escalation allowing malicious users to reshare with higher permissions than they got assigned themselves.
https://nextcloud.com/security/advisory/?id=NC-SA-2020-029
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T7FX3O6SJE2S52I2HAA4DSTUIISP5BNA/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KC6HLX5SG4PZO6Y54D2LFJ4ATG76BKOP/
https://hackerone.com/reports/889243
Source: Mitre, NVD
Published: 2020-10-05
Updated: 2023-11-07
Base Score: 3.5
Vector: CVSS2#AV:N/AC:M/Au:S/C:N/I:P/A:N
Severity: Low
Base Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Severity: Medium