Published: 20 December 2019
LibreOffice and OpenOffice automatically open embedded content
CVSS 3 base score: 6.5
seems more like a feature request. LibreOffice prompts the user saying that the document contains links to external data and asks if the user wants to refresh them. The prompt does not say what the files are. The external content is fetched the first time without prompting.
See http://whatofhow.wordpress.com/2013/12/02/stealth-mode/ for improvement that went into 4.2. We will not be fixing this in precise, marking as ignored