Currently when a marketer needs to edit fragment placed in a specific page, he needs permissions to edit the entire page.
Now you can create a role (regular or site) and:
a) Define global permissions for this role to edit all pages.
b) Edit the specific page's permissions and give the new role edit/update permissions.
But there are not specific permissions to only edit 'inline' fragments in a page.
The goal is to allow marketers to update editable fields of a fragment placed in a specific page, without giving them permissions to edit any other component (or attribute) present in this page.
Affected versions: 7.2.x, Master