If you've seen the string in your server logs or search results, you are looking at evidence of a highly critical security vulnerability. This path is the calling card for CVE-2017-9841 , a Remote Code Execution (RCE) flaw in PHPUnit that remains one of the most scanned-for vulnerabilities by automated botnets today. What is the PHPUnit eval-stdin.php Vulnerability?
The phrase you provided refers to a common search query (often a "Google dork") used to identify web servers vulnerable to , a critical Remote Code Execution (RCE) vulnerability in PHPUnit . The Vulnerability: CVE-2017-9841 index of vendor phpunit phpunit src util php eval-stdin.php
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