The VerifySmtpServerConnection!add.jspa component in Atlassian Jira Server and Data Center before version 8.7.0 is vulnerable to cross-site request forgery (CSRF). An attacker could exploit this by tricking an administrative user into making malicious HTTP requests, allowing the attacker to enumerate hosts and open ports on the internal network where Jira server is present.

The Jira Importers Plugin in Atlassian Jira Server and Data Cente from version with 7.0.10 before 7.6.16, from 7.7.0 before 7.13.8, from 8.0.0 before 8.1.3, from 8.2.0 before 8.2.5, from 8.3.0 before 8.3.4 and from 8.4.0 before 8.4.1 allows remote attackers with Administrator permissions to gain remote code execution via a template injection vulnerability through the use of a crafted PUT request.

Application Links before version 5.0.11, from version 5.1.0 before 5.2.10, from version 5.3.0 before 5.3.6, from version 5.4.0 before 5.4.12, and from version 6.0.0 before 6.0.4 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the applinkStartingUrl parameter. The product is used as a plugin in various Atlassian products where the following are affected: Confluence before version 6.15.2, Crucible before version 4.7.0, Crowd before version 3.4.3, Fisheye before version 4.7.0, Jira before version 7.13.3 and 8.x before 8.1.0.