[wp-trac] [WordPress Trac] #53348: No form to log in when visiting wp-login.php with a given query string

[WordPress Trac]

#53348: No form to log in when visiting wp-login.php with a given query string
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 Reporter:  henry.wright            |       Owner:  (none)
     Type:  defect (bug)            |      Status:  new
 Priority:  normal                  |   Milestone:  Awaiting Review
Component:  Login and Registration  |     Version:
 Severity:  normal                  |  Resolution:
 Keywords:                          |     Focuses:
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Comment (by henry.wright):

 **In summary**

 I did some testing on a fresh local install using both `action` and
 `checkemail` attributes in the wp-login.php query string.

 For the `action` attribute, the `postpass` and `checkemail` values result
 in blank pages:

  - wp-login.php?action=postpass
  - wp-login.php?action=checkemail

 When the value is `checkemail`, I get 2 debug notices related to a
 undefined indexes in wp-login.php

 > Undefined index: checkemail in /var/www/html/wp-login.php

 For the `checkemail` attribute, every value aside from `confirm` and
 `registered` results in blank pages:

  - wp-login.php?checkemail=foo
  - wp-login.php?checkemail=bar

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Ticket URL: <https://core.trac.wordpress.org/ticket/53348#comment:3>
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