The AccessLogFilter class in Jira before version 8.4.0 allows remote anonymous attackers to learn details about other users, including their username, via an information expose through caching vulnerability when Jira is configured with a reverse Proxy and or a load balancer with caching or a CDN.
The Webwork action Cross-Site Request Forgery (CSRF) protection implementation in Jira before version 8.4.0 allows remote attackers to bypass its protection via "cookie tossing" a CSRF cookie from a subdomain of a Jira instance.
The wikirenderer component in Jira before version 7.13.6, and from version 8.0.0 before version 8.3.2 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in image attribute specification.
Several worklog rest resources in Jira before version 7.13.7, and from version 8.0.0 before version 8.3.2 allow remote attackers to view worklog time information via a missing permissions check.
The /rest/issueNav/1/issueTable resource in Jira before version 8.3.2 allows remote attackers to enumerate usernames via an incorrect authorisation check.
The ServiceExecutor resource in Jira before version 8.3.2 allows remote attackers to trigger the creation of export files via a Cross-site request forgery (CSRF) vulnerability.