[wp-trac] [WordPress Trac] #48506: wp_mkdir_p does not support relative paths

[WordPress Trac]

#48506: wp_mkdir_p does not support relative paths
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 Reporter:  greengremlin  |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  General       |     Version:  5.2.4
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by mpcube):

 I dont' know, what exactly the reason for this change was, but for me the
 following solution would fit:

 In _wp_upload_dir(): use path_join() to join ABSPATH and UPLOADS (not just
 ABSPATH and $upload_path)

 In path_join(): replace /foo/bar/../baz with /foo/baz so that UPLOADS and
 $upload_path can be a string starting with ../

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Ticket URL: <https://core.trac.wordpress.org/ticket/48506#comment:2>
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