The best practice for PHP security is to place your vendor folder and all configuration files outside of the public web root. Only your index.php and static assets (CSS, JS) should be in the public folder. 3. Disable Directory Indexing Prevent your server from listing files in any directory.
Attackers use search engines (Google Dorks) or automated scripts to find "Index of" pages containing the vendor/phpunit path.
An "Index of" page appears when a web server (like Apache or Nginx) is configured to show a list of files in a directory that doesn't have an index.php or index.html file. index of vendor phpunit phpunit src util php evalstdinphp
If you must have it, ensure it is updated to a version where this file has been removed or secured. 2. Move the Vendor Directory
Run composer install --no-dev to ensure development dependencies are removed. The best practice for PHP security is to
Have you checked your recently to ensure directory listing is disabled across all sensitive folders?
The vendor directory, which contains core logic and third-party libraries, should always be located above the web root (e.g., outside of public_html or www ) or explicitly blocked from public access. How to Fix and Secure Your Server Disable Directory Indexing Prevent your server from listing
Ensure autoindex is set to off; in your configuration file. 4. Block Access via .htaccess