Vulnerabilities > CVE-2021-22906 - Authorization Bypass Through User-Controlled Key vulnerability in Nextcloud End-To-End Encryption

047910
CVSS 6.5 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
HIGH
network
low complexity
nextcloud
CWE-639

Summary

Nextcloud End-to-End Encryption before 1.5.3, 1.6.3 and 1.7.1 suffers from a denial of service vulnerability due to permitting any authenticated users to lock files of other users.