UpHeron
All vulnerabilities

Servers and applications

CVE-2016-9464

Nextcloud Server before 9.0.54 and 10.0.0 suffers from an improper authorization check on removing shares. The Sharing Backend as implemented in Nextcloud does differentiate between shares to users and groups. In case of a received group share, users should be able to unshare the file to themselves but not to the whole group. The previous API implementation simply unshared the file to all users…

Severity
Medium 4.3
Published
28 Mar 2017
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
9.0.54
Sources
NVD

Affected software

SoftwareAffected versions
NextcloudServers and applications · cpe:a:nextcloud:nextcloud_server
  • Every version before 9.0.54
  • Version 10.0-rc1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-9464
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-9464