Path traversal in JIRA Importers plugin (Windows only)

We have identified and fixed a vulnerability in JIRA which allowed unauthenticated users to create files in any valid directory inside JIRA install. In order to exploit this vulnerability, an attacker requires access to JIRA web interface.

This issue only affects JIRA servers running on Windows OS. It is not exploitable on Linux and OSX systems.

The vulnerability affects all supported versions of JIRA up to and including 6.0.4. It has been fixed in 6.0.5.

For more information, see our security advisory.