Please do not open a public issue for a security problem.
Report it privately through GitHub: open the Security tab of this repository and choose Report a vulnerability. Describe what you found, how to reproduce it and which OpenHub version you used. You will get an answer, and a fixed release, as soon as possible; you will be credited in the release notes if you wish.
Only the newest release receives fixes. The built-in updater (Settings, Check for updates) announces new versions.
See Security and privacy in the README.