[HIGH] PhpSpreadsheet allows unauthorized Reflected XSS in `Convert-Online.php` file

PKSA-bcnb-9tc9-bjb8 CVE-2024-56408 GHSA-x88g-h956-m5xg

Affected package: phpoffice/phpspreadsheet

Affected version: >=2.2.0,<=2.3.4|>=2.0.0,<=2.1.5|<=1.29.6|>=3.0.0,<3.7.0

Reported by:
GitHub