[wp-trac] [WordPress Trac] #49482: Non-english slug can sometimes cause an error in WordPress query

WordPress Trac noreply at wordpress.org
Thu Feb 20 11:00:26 UTC 2020


#49482: Non-english slug can sometimes cause an error in WordPress query
--------------------------+------------------------------
 Reporter:  panjmp        |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Database      |     Version:  5.3.2
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
--------------------------+------------------------------
Description changed by SergeyBiryukov:

Old description:

> The error is
>
> {{{
> Warning: vsprintf(): Too few arguments in wp-includes/wp-db.php on line
> 1397
> }}}
>
> I found the root cause that if the encoded slug contains the {{{%f}}} or
> {{{%[0-9]f}}}. it will be converted to capital F (wp-db.php:1359) and
> will not be properly escaped (wp-db.php:1361)
>
> I found a ticket here https://core.trac.wordpress.org/ticket/49140 but it
> has been closed.

New description:

 The error is

 {{{
 Warning: vsprintf(): Too few arguments in wp-includes/wp-db.php on line
 1397
 }}}

 I found the root cause that if the encoded slug contains the {{{%f}}} or
 {{{%[0-9]f}}}. it will be converted to capital F (wp-db.php:1359) and will
 not be properly escaped (wp-db.php:1361)

 I found a ticket here #49140 but it has been closed.

--

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Ticket URL: <https://core.trac.wordpress.org/ticket/49482#comment:1>
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