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See Release Notes

  • Bug fixes for general core bugs in 4.0.x will end 8 May 2023 (12 months).
  • Bug fixes for security issues in 4.0.x will end 13 November 2023 (18 months).
  • PHP version: minimum PHP 7.3.0 Note: the minimum PHP version has increased since Moodle 3.10. PHP 7.4.x is also supported.
/lib/classes/check/security/
FolderUp one level  
Filecrawlers.php                [source] [89 lines]    Verifies web crawler (search engine) access Not combined with disabled guest access because attackers might gain guest access by modifying browser signature.
Fileemailchangeconfirmation.php [source] [86 lines]    Verifies email confirmation - spammers were changing mails very often
Fileembed.php                   [source] [80 lines]    Verifies sloppy embedding - this should have been removed long ago!!
Fileopenprofiles.php            [source] [80 lines]    Verifies open profiles - originally open by default, not anymore because spammer abused it a lot
Filepasswordpolicy.php          [source] [80 lines]    Verifies if password policy set
Filewebcron.php                 [source] [84 lines]    Verifies the status of web cron