Index Of Vendor Phpunit Phpunit Src Util Php Eval-stdin.php -

curl -X POST --data "<?php echo 'Test'; ?>" https://example.com/vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php

The file path vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php is a component of the PHPUnit testing framework. When this file is exposed via a misconfigured web server (e.g., allowing directory indexing or direct execution), it creates a . Attackers can exploit this file to execute arbitrary PHP code on the server, leading to full system compromise.

When an attacker locates an exposed eval-stdin.php file, they send a crafted HTTP POST request to the URL. Conceptual Example of an Attack The attacker sends a request structured like this:

Stealing database credentials, user information, and sensitive files. Malware Deployment: Hosting phishing pages or ransomware. index of vendor phpunit phpunit src util php eval-stdin.php

If you need to verify whether your current setup is safe, please tell me:

PHPUnit is the de facto standard for unit testing in the PHP ecosystem. Developers install it via Composer, usually as a require-dev dependency. The vendor directory is where Composer places all third-party libraries. In a typical production setup, the entire vendor folder is deployed to the server because the application’s runtime code depends on various packages. PHPUnit, however, is meant to run on a live production server—it contains tools for test execution, code generation, and, as you might have guessed, a file called eval-stdin.php .

: This is a high-severity vulnerability (CVSS 9.8) because it requires no authentication and grants full control over the application context. Affected Versions curl -X POST --data "&lt;

| Attack Vector | Impact | |---------------|--------| | Direct HTTP POST request | Arbitrary code execution | | Chained with file upload or LFI | Escalate to system compromise | | Automated scanners (e.g., Nuclei, wpscan) | Mass exploitation |

The presence of eval-stdin.php in a publicly accessible directory is not merely a configuration oversight—it is a . Attackers actively scan for and exploit this exact file, often within minutes of it being indexed.

Attempting to exploit eval-stdin.php on a website you do not own is illegal (Computer Fraud and Abuse Act in the US, similar laws elsewhere). This article is for defensive education and authorized penetration testing only. When an attacker locates an exposed eval-stdin

Here is a simplified version of what the file contains:

If you find this file in your /vendor folder or see related access logs, take the following steps immediately: