[wp-trac] [WordPress Trac] #43823: Posts can not be saved with /etc/ as part of the content

[WordPress Trac]

#43823: Posts can not be saved with /etc/ as part of the content
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 Reporter:  fgluck        |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Editor        |    Version:  4.9.5
 Severity:  critical      |   Keywords:
  Focuses:                |
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 I created a post using the latest version of WordPress with one line and
 the only content of the post.

 The line is:

 /etc/

 I can not save this post as a draft. When saving, I get a blank white
 screen.
 This was tested using Theme TwentyFifteen updated to the latest version.

 I can save the post if there is a space between /etc and the last slash.

 This has been tested with all plugins disabled with the same results.

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Ticket URL: <https://core.trac.wordpress.org/ticket/43823>
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