write permission
Computing term for the permission to write or modify a file, directory, or storage medium.
You need write permission for this folder.
You cannot save the file without write permission.
読み取り専用 means read-only, the opposite of having write permission.
アクセス権 is a broader term for access rights, which may include read, write, and execute permissions.
Compound of 書き込み (writing) and 許可 (permission).