description: Nextcloud Server before 9.0.55 and 10.0.2 suffers from a creation of folders in read-only folders despite lacking permissions issue. Due to a logical error in the file caching layer an authenticated adversary is able to create empty folders inside a shared folder. Note that this only affects folders and files that the adversary has at least read-only permissions for.
problem types: Permission Issues (CWE-275)
affected:
{
product: Nextcloud Server
vendor: Nextcloud
versions:
status: affected, version: All versions before 9.0.55 and 10.0.2
}