[wp-trac] [WordPress Trac] #44105: Permalink Issue while the page should be 404

[WordPress Trac]

#44105: Permalink Issue while the page should be 404
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 Reporter:  sasiddiqui    |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Permalinks    |    Version:  4.9.5
 Severity:  critical      |   Keywords:
  Focuses:                |
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 I have Fresh installed WordPress with the Latest version. I have created a
 post let's say with the name of "Testing Post" and the URL of the post is:
 https://dev-wordpress-core.pantheonsite.io/testing-post/

 It works fine. But when i append a numeric keywords at the end of
 permalinks as mentioned below:
 1. https://dev-wordpress-core.pantheonsite.io/testing-post/1000/
 2. https://dev-wordpress-core.pantheonsite.io/testing-post/100000000000/
 3. https://dev-wordpress-core.pantheonsite.io/testing-post/719/

 In these cases, page should return 404 but it's not happening. It's
 returning 200 with the duplicate content of https://dev-wordpress-
 core.pantheonsite.io/testing-post/

 Whereas if there is any alphabetic keyword then it returns the 404 as
 expected. Like:
 1. https://dev-wordpress-core.pantheonsite.io/testing-post/a/
 2. https://dev-wordpress-core.pantheonsite.io/testing-post/1000000a/


 Permalink setting is set to "Post name". There is no plugin installed and
 Twenty Seventeen Theme is used to check this issue.


 It is a critical issue as Google starts reporting the duplicate content on
 the pages.

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Ticket URL: <https://core.trac.wordpress.org/ticket/44105>
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