Path Traversal in admin/assetmanager/assetmanager.php (vulnerable function saved in admin/assetmanager/functions.php) in Chadha PHPKB Standard Multi-Language 9 allows attackers to list the files that are stored on the webserver using a dot-dot-slash sequence (../) via the POST parameter inpCurrFolder.
https://antoniocannito.it/phpkb1#arbitrary-file-listing-cve-2020-10459