Indico: Local file disclosure through offline-copy path traversal

Indico is a feature-rich event management system. Prior to version 3.3.14, due to a path traversal vulnerability when building an "offline copy" of an event, a malicious event manager has the ability to retrieve the content of any local file that's readable by the user running Indico on the server. This issue has been patched in version 3.3.14.