https://www.bleepingcomputer.com/news/security/critical-bug-in-owncloud-file-sharing-app-exposes-admin-passwords/

Open source file sharing software ownCloud is warning of three critical-severity security vulnerabilities, including one that can expose administrator passwords and mail server credentials.

ownCloud is an open-source file sync and sharing solution designed for individuals and organizations wishing to manage and share files through a self-hosted platform.