[wp-trac] [WordPress Trac] #48975: Fix unhandled upper/lower case change in wp_unique_filename()

[WordPress Trac]

#48975: Fix unhandled upper/lower case change in wp_unique_filename()
--------------------------+--------------------
 Reporter:  azaozz        |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  5.3.2
Component:  Upload        |    Version:  5.3.1
 Severity:  normal        |   Keywords:
  Focuses:                |
--------------------------+--------------------
 Introduced in #42437, [46822].

 On non case-sensitive file systems it may fail to match a file when the
 uploaded wile is with upper case extension. Also if a file with upper case
 extension is uploaded, and the file name matches exactly an existing file
 name that has dimensions-like ending, it may fail to rename the file
 causing a fatal error.

 Both cases seem very rare but worth fixing asap as uploading a file with
 upper case (or mixed case) extension may result in a fatal error.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/48975>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform