If you cannot immediately move your vendor directory, block HTTP access to it. Deny from all Use code with caution. For Nginx (inside the server block): location /vendor/ deny all; return 404; Use code with caution. To help secure your specific environment, let me know:
Require all denied Use code with caution. location ~* /vendor/.*\.php$ deny all; Use code with caution. 3. Update PHPUnit If you cannot immediately move your vendor directory,
folder—which should be private—becomes public. An attacker can then send a simple POST request to this URL: If you cannot immediately move your vendor directory,