[wp-trac] [WordPress Trac] #23418: banned names / illegal_names not being banned

[WordPress Trac]

#23418: banned names / illegal_names not being banned
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 Reporter:  dohman           |       Type:  defect (bug)
   Status:  new              |   Priority:  normal
Milestone:  Awaiting Review  |  Component:  Multisite
  Version:  3.5.1            |   Severity:  normal
 Keywords:                   |
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 new site registrations are ignoring the banned names i add to the list in
 network options.

 out of the gate the default banned names function works and the system
 does not let me register any of those default names. the illegal_names
 value in the wp_sitemeta table is populated with:
 '''''a:7:{i:0;s:3:"www";i:1;s:3:"web";i:2;s:4:"root";i:3;s:5:"admin";i:4;s:4:"main";i:5;s:6:"invite";i:6;s:13:"administrator";}'''''

 when i add '''''seven eight nine''''' to the banned names field of the
 network setting page and save the page, the banned names field is
 populated with '''''www web root admin main invite administrator seven
 eight nine''''', just how you would expect. but now the illegal_names
 value in the db is '''''a:1:{i:0;s:61:"www web root admin main invite
 administrator seven eight nine";}'''''

 notice how the serialized array only has one string now instead of the
 original multiple strings. once it is saved like this users can register
 any site name including defaults like admin and root plus the new names i
 added to the list.

 my setup: two fresh multisite 3.5.1 installs. one is on a vps and the
 other on a local xampp install. no plugins activated nor installed. using
 twenty twelve theme. these are test installs.

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Ticket URL: <http://core.trac.wordpress.org/ticket/23418>
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