The diagnosticsb2ksy parameter of the /rest endpoint in Opsview Monitor before 5.3.1 and 5.4.x before 5.4.2 is vulnerable to Cross-Site Scripting.Referenceshttps://knowledge.opsview.com/v5.4/docs/whats-newhttps://seclists.org/fulldisclosure/2018/Sep/3https://www.coresecurity.com/advisories/opsview-monitor-multiple-vulnerabilitieshttps://knowledge.opsview.com/v5.3/docs/whats-new
