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In a properly secured environment, the vendor/ folder should never be accessible from the public web. However, misconfigurations or legacy deployments sometimes expose these directories – and that’s where the trouble begins.
Check your deployed files for the existence of eval-stdin.php : index of vendor phpunit phpunit src util php eval-stdin.php
curl -X POST --data "" http://example.com Use code with caution.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. : In a properly secured environment, the vendor/
But remember: PHPUnit should be installed on a publicly accessible production server. Always use --no-dev when deploying.
Look for newly created or modified .php files in your public directories, which may indicate web shells. This public link is valid for 7 days
The eval-stdin.php file serves as a stark reminder of the dangers of exposing development artifacts in production environments. While the code was intended to aid developers, its presence on live web servers has caused widespread compromise. By adhering to the principle of least privilege—ensuring development tools remain in development environments and web servers deny access to internal directories—organizations can neutralize this threat.
: Scan your web root for newly created .php files, hidden files, or modified core framework files that could act as backdoors.
Assume that if the file was exposed for any length of time, an attacker might have already used it. Perform a thorough security audit: