Provide references for CVE-2018-19277.
Where can I find more information about CVE-2018-19277?
References are available at: https://github.com/PHPOffice/PhpSpreadsheet/issues/771, https://www.bishopfox.com/news/2018/11/phpoffice-versions/, https://github.com/MewesK/TwigSpreadsheetBundle/issues/18, https://www.drupal.org/sa-contrib-2021-043.