[wp-trac] [WordPress Trac] #54278: Properly escape form action url

[WordPress Trac]

#54278: Properly escape form action url
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 Reporter:  sabbirshouvo      |      Owner:  (none)
     Type:  defect (bug)      |     Status:  new
 Priority:  normal            |  Milestone:  Awaiting Review
Component:  General           |    Version:  trunk
 Severity:  normal            |   Keywords:  has-patch
  Focuses:  coding-standards  |
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 In `wp-admin/update-core.php` there are 4 forms with action. Thress of
 them has form action with properly escaped URL. One of them is missing URL
 escaping while the value of action for all of them is the same.

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Ticket URL: <https://core.trac.wordpress.org/ticket/54278>
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