[wp-trac] [WordPress Trac] #52420: core file "wp-load.php" getting wiped out

[WordPress Trac]

#52420: core file "wp-load.php" getting wiped out
--------------------------+-----------------------------
 Reporter:  whbtechs      |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  5.6
 Severity:  critical      |   Keywords:
  Focuses:                |
--------------------------+-----------------------------
 Hello,

 We've discovered a strange bug with a WP instance. All of sudden the WP
 websites start throwing out the 500 Internal Server Error.

 The local error log files contain the following records:

 ======================================================================================
 Uncaught Error: Call to undefined function wp() in
 /home/username/public_html/wp-blog-header.php:16
 ======================================================================================

 Looking at the WP core files, we can see that the "wp-load.php" file is
 completely empty:

 =============================
 0       wp-load.php
 4.0K    cgi-bin
 4.0K    index.php
 4.0K    wp-blog-header.php
 4.0K    wp-comments-post.php
 4.0K    wp-config.php
 4.0K    wp-config-sample.php
 4.0K    wp-cron.php
 4.0K    wp-links-opml.php
 4.0K    xmlrpc.php
 8.0K    readme.html
 8.0K    wp-activate.php
 8.0K    wp-trackback.php
 =============================

 A temporary solution that we found consists of uploading the "wp-load.php"
 file from a fresh WP installation archive and assigning the immutable bit
 on the file using "chattr"

 We don't know what process or change causes the core file code wiped out.

 Can you please look into it and let us know if it's a global problem with
 the WP instance or it's a local problem?

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/52420>
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