CVE-2017-11148
Server-side request forgery (SSRF) vulnerability in link preview in Synology Chat before 1.1.0-0806 allows remote authenticated users to access intranet resources via unspecified vectors.
Date published : 2017-08-11
http://www.securityfocus.com/bid/100310
https://www.synology.com/en-global/support/security/Synology_SA_17_38_Chat