It was found that in LibreOffice Impress, the background image set on master slide is present in odp archive even after removal. This allows other users to view pictures set as background that creator has decided not to publish.
Acknowledgments: Name: Tim Jackson (Red Hat)
Created libreoffice tracking bugs for this issue: Affects: fedora-all [bug 1326602]
libreoffice-5.0.6.2-3.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
libreoffice-5.1.3.1-2.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.