Description
A 3rd party development library including with Drupal 8 development dependencies is vulnerable to remote code execution. This is mitigated by the default .htaccess protection against PHP execution, and the fact that Composer development dependencies aren't normal installed. You might be vulnerable to this if you are running a version of Drupal before 8.2.2. To be sure you aren't vulnerable, you can remove the <siteroot>/vendor/phpunit directory from your production deployments
Remediation
References
Related Vulnerabilities
WordPress Plugin FancyFlickr Cross-Site Scripting (1.0)
WebLogic CVE-2020-14638 Vulnerability (CVE-2020-14638)
MySQL CVE-2022-21367 Vulnerability (CVE-2022-21367)
XWiki Weak Password Recovery Mechanism for Forgotten Password Vulnerability (CVE-2022-23619)
WordPress Plugin WP Link To Us Multiple Cross-Site Scripting Vulnerabilities (2.0)