Improper permissions preservation in Nextcloud Server 16.0.1 causes sharees to be able to reshare with write permissions when sharing the mount point of a share they received, as a public link.Referenceshttps://hackerone.com/reports/619484https://nextcloud.com/security/advisory/?id=NC-SA-2020-012http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.html
