securityScan() in PHPOffice PhpSpreadsheet through 1.5.0 allows a bypass of protection mechanisms for XXE via UTF-7 encoding in a .xlsx file
https://www.drupal.org/sa-contrib-2021-043
https://www.bishopfox.com/news/2018/11/phpoffice-versions/
https://github.com/PHPOffice/PhpSpreadsheet/issues/771
https://github.com/MewesK/TwigSpreadsheetBundle/issues/18
Source: Mitre, NVD
Published: 2018-11-14
Updated: 2022-04-18
Base Score: 6.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: High