CVE-2018-6871
LibreOffice before 5.4.5 and 6.x before 6.0.1 allows remote attackers to read arbitrary files via =WEBSERVICE calls in a document, which use the COM.MICROSOFT.WEBSERVICE function.
Date published : 2018-02-09
https://www.libreoffice.org/about-us/security/advisories/cve-2018-1055/