[wp-trac] [WordPress Trac] #5272: WordPress allows anonymous user to see slug for private post by guessing post number

[WordPress Trac]

#5272: WordPress allows anonymous user to see slug for private post by guessing
post number
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 Reporter:  tzafrir                              |       Owner:
                                                 |  SergeyBiryukov
     Type:  defect (bug)                         |      Status:  closed
 Priority:  normal                               |   Milestone:  5.7
Component:  Security                             |     Version:  2.3.1
 Severity:  normal                               |  Resolution:  fixed
 Keywords:  has-patch has-unit-tests needs-dev-  |     Focuses:
  note                                           |
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Changes (by peterwilsoncc):

 * status:  reopened => closed
 * resolution:   => fixed


Comment:

 In [changeset:"50132" 50132]:
 {{{
 #!CommitTicketReference repository="" revision="50132"
 Canonical: Prevent ID enumeration of private post slugs.

 Add check to `redirect_canonical()` to ensure private posts only redirect
 for logged in users.

 Modifies the `read_post` mata capability to user `get_post_status()`
 rather than the post's `post_status` property to allow attachments to
 redirect based on the inherited post status.

 Introduces `wp_force_ugly_post_permalink()` to unify the check to
 determine if an ugly link should be displayed in each of the functions
 used for determining permalinks: `get_permalink()`,
 `get_post_permalink()`, `_get_page_link()` and `get_attachment_link()`.

 Improves logic of `get_attachment_link()` to validate parent post and
 resolution of inherited post status. This is an incomplete fix of #52373
 to prevent the function returning links resulting in a file not found
 error. Required to unblock this ticket.

 Props peterwilsoncc, TimothyBlynJacobs.
 See #52373.
 Fixes #5272.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/5272#comment:30>
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