This blog series has highlighted critical security vulnerabilities within JumpServer, a Privileged Access Management (PAM) application. An attacker can leverage authentication bypass vulnerabilities and chained authenticated code execution flaws to fully compromise the JumpServer infrastructure and internal hosts. The vulnerabilities were addressed in various versions of JumpServer by Fit2Cloud, including fixes for Ansible playbook validation bypass, Jinja template injection, arbitrary file write and read in Ansible playbooks, and compromised Celery impact. Understanding these fundamental issues is crucial for building robust and secure software, and the importance of API security testing, threat model alignment, and container best practices cannot be overstated.