Jira Server 7.6.0-8.3.9 - Server-Side Request Forgery via Gadgets MakeRequest Endpoint
The /plugins/servlet/gadgets/makeRequest resource in Jira before version 8.4.0 allows remote attackers to access the content of internal network resources via a Server Side Request Forgery (SSRF) vulnerability due to a logic bug in the JiraWhitelist class.