A new advisory has been published about a path traversal vulnerability affecting Jira 5.0.11 and 6.0.3. The vulnerability was corrected in July of last year and the fixes were deployed in the following months.
The attack is quite simple but, the potential impact is considerable. It could allow a attacker to upload a file that would serve as a webshell. I will explain how it was found by static analysis and why a little detail made it exploitable only on Windows operating system.