[wp-trac] [WordPress Trac] #45615: CSV Mime Type fails upload

[WordPress Trac]

#45615: CSV Mime Type fails upload
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 Reporter:  Kloon                    |       Owner:  (none)
     Type:  defect (bug)             |      Status:  new
 Priority:  normal                   |   Milestone:  Awaiting Review
Component:  Filesystem API           |     Version:  5.0.1
 Severity:  normal                   |  Resolution:
 Keywords:  has-patch needs-testing  |     Focuses:
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Comment (by batesy87):

 Has mime type checking been retrospectively patched into older versions of
 WP?
 Two sites running 4.8.8 and 4.9.9 both seem to have this issue

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Ticket URL: <https://core.trac.wordpress.org/ticket/45615#comment:3>
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