description: Zulip Server 1.5.1 and below suffer from an error in the implementation of the invite_by_admins_only setting in the Zulip group chat application server that allowed an authenticated user to invite other users to join a Zulip organization even if the organization was configured to prevent this.
problem types: Improper Authorization (CWE-285)
affected:
{
product: Zulip Server
vendor: Zulip
versions:
status: affected, version: 1.5.1 and below
}