The keyword ends with “work”, implying you want to this file – either to use it legitimately or to secure your environment. Let’s cover both.
The combination of file_get_contents('php://input') and eval() forms a severe code injection vector. The stream wrapper php://input allows a PHP script to read raw data from an HTTP POST request body. When wrapped inside eval() , any valid PHP code transmitted in a POST payload is directly interpreted and executed by the server. How a Hacker Exploits It
was designed to execute PHP code received via standard input for testing purposes. In vulnerable versions, an attacker can send an HTTP POST request to this file containing malicious PHP code. If the payload starts with , the server will execute it, giving the attacker full control over the application environment. How to Fix It The keyword ends with “work”, implying you want
The path vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php is associated with a critical vulnerability known as CVE-2017-9841 . This vulnerability occurs when the PHPUnit testing framework is incorrectly deployed in a production environment and its directory is web-accessible. Vulnerability Report: CVE-2017-9841
Attackers can send malicious code to this file, and your server will execute it. The stream wrapper php://input allows a PHP script
If you see successful POST responses (HTTP status 200) to that file in your history, it is highly recommended to audit your code, change all database credentials, and redeploy your site from a clean backup.
There is rarely a legitimate reason for a browser to directly request files inside the vendor/ folder. You should block public access to it entirely. In vulnerable versions, an attacker can send an
In the PHPUnit source code, the file path is: vendor/phpunit/phpunit/src/Util/PHP/eval-stdin.php
: This relies on an enabled Options +Indexes setting in Apache or a misconfiguration in Nginx. It signals that a web server is displaying an open directory listing rather than rendering a default landing page (like index.php ).
If you see requests for this path in your server logs, your site is being probed by automated or malware like AndroxGh0st . These scanners hunt for exposed /vendor folders to:
This file— eval-stdin.php —is a component of PHPUnit, a testing framework never intended to be deployed on a public-facing production server. Yet, time and again, developers inadvertently upload their entire vendor directory to the web, exposing this file to anyone who knows where to look. This article is a deep dive into CVE-2017-9841, the haunting of the PHP ecosystem, and how this single, seemingly benign file has been the entry point for botnets, malware, and silent data exfiltration.