Penetration Test of an Open Source Application

Penetration tests are used to identify security vulnerabilities and to evaluate the security of applications and systems.
In a thesis on this topic, a penetration test is performed for an actual application (web, desktop, ...) or computer system.

The theoretical part includes a presentation of the architecture of the chosen target and the development of an appropriate penetration testing methodology.

The practical part consists of a penetration test of the chosen target.

Please provide information about possible targets and explain why a penetration test of the chosen technology might be interesting.