The membersOf JQL search function in Jira Server and Data Center before version 8.5.13, from version 8.6.0 before version 8.13.5, and from version 8.14.0 before version 8.15.1 allows remote anonymous attackers to determine if a group exists & members of groups if they are assigned to publicly visible issue field.

The /rest/api/1.0/render resource in Jira Server and Data Center before version 8.5.13, from version 8.6.0 before version 8.13.5, and from version 8.14.0 before version 8.15.1 allows remote anonymous attackers to determine if a username is valid or not via a missing permissions check.

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to inject arbitrary HTML or JavaScript via a Cross-Site Scripting (XSS) vulnerability in the ViewWorkflowSchemes.jspa and ListWorkflows.jspa endpoints. The affected versions are before version 8.5.11, from version 8.6.0 before 8.13.3, and from version 8.14.0 before 8.15.0.

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to inject arbitrary HTML or JavaScript via a Cross-Site Scripting (XSS) vulnerability in the Screens Modal view. The affected versions are before version 8.5.11, from version 8.6.0 before 8.13.3, and from version 8.14.0 before 8.15.0.

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to view the metadata of boards they should not have access to via an Insecure Direct Object References (IDOR) vulnerability. The affected versions are before version 8.5.10, and from version 8.6.0 before 8.13.2.

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to enumerate project keys via an Information Disclosure vulnerability in the /browse.PROJECTKEY endpoint. The affected versions are before version 7.13.7, from version 8.0.0 before 8.5.8, and from version 8.6.0 before 8.12.0.

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to view titles of a private project via an Insecure Direct Object References (IDOR) vulnerability in the Administration Permission Helper. The affected versions are before version 7.13.6, from version 8.0.0 before 8.5.7, from version 8.6.0 before 8.9.2, and from version 8.10.0 before 8.10.1.

The file upload feature in Atlassian Jira Server and Data Center in affected versions allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability. The affected versions are before version 8.5.4, from version 8.6.0 before 8.6.2, and from version 8.7.0 before 8.7.1.

The email client in Jira Server and Data Center before version 7.13.16, from 8.5.0 before 8.5.7, from 8.8.0 before 8.8.2, and from 8.9.0 before 8.9.1 allows remote attackers to access outgoing emails between a Jira instance and the SMTP server via man-in-the-middle (MITM) vulnerability.

The MessageBundleResource resource in Jira Server and Data Center before version 7.13.4, from 8.5.0 before 8.5.5, from 8.8.0 before 8.8.2, and from 8.9.0 before 8.9.1 allows remote attackers to impact the application's availability via an Denial of Service (DoS) vulnerability.

The Gadget API in Atlassian Jira Server and Data Center in affected versions allows remote attackers to make Jira unresponsive via repeated requests to a certain endpoint in the Gadget API. The affected versions are before version 8.5.4, and from version 8.6.0 before 8.6.1.

The avatar upload feature in affected versions of Atlassian Jira Server and Data Center allows remote attackers to achieve Denial of Service via a crafted PNG file. The affected versions are before version 8.5.4, from version 8.6.0 before 8.6.2, and from version 8.7.0 before 8.7.1.

Atlassian Jira Server and Data Center in affected versions allows remote attackers to modify logging and profiling settings via a cross-site request forgery (CSRF) vulnerability. The affected versions are before version 7.13.3, and from version 8.0.0 before 8.1.0.

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in Issue Navigator Basic Search. The affected versions are before version 7.13.9, and from version 8.0.0 before 8.4.2.

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to impact the application's availability via a Denial of Service (DoS) vulnerability on the UserPickerBrowser.jspa page. The affected versions are before version 7.13.9, and from version 8.0.0 before 8.4.2.

The Convert Sub-Task to Issue page in affected versions of Atlassian Jira Server and Data Center allow remote attackers to enumerate the following information via an Improper Authentication vulnerability: Workflow names; Project Key, if it is part of the workflow name; Issue Keys; Issue Types; Status Types. The affected versions are before version 7.13.9, and from version 8.0.0 before 8.4.2.

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to view sensitive information via an Information Disclosure vulnerability in the comment restriction feature. The affected versions are before version 7.6.17, from version 7.7.0 before 7.13.9, and from version 8.0.0 before 8.4.2.

Comment properties in Atlassian Jira Server and Data Center before version 7.13.12, from 8.0.0 before version 8.5.4, and 8.6.0 before version 8.6.1 allows remote attackers to make comments on a ticket to which they do not have commenting permissions via a broken access control bug.

The TM Software Tempo plugin before 6.4.3.1, 6.5.x before 6.5.0.2, and 7.x before 7.0.3 for Atlassian JIRA does not properly restrict the capabilities of third-party XML parsers, which allows remote authenticated users to cause a denial of service (resource consumption) via unspecified vectors.

Atlassian JIRA before 5.0.1; Confluence before 3.5.16, 4.0 before 4.0.7, and 4.1 before 4.1.10; FishEye and Crucible before 2.5.8, 2.6 before 2.6.8, and 2.7 before 2.7.12; Bamboo before 3.3.4 and 3.4.x before 3.4.5; and Crowd before 2.0.9, 2.1 before 2.1.2, 2.2 before 2.2.9, 2.3 before 2.3.7, and 2.4 before 2.4.1 do not properly restrict the capabilities of third-party XML parsers, which allows remote attackers to read arbitrary files or cause a denial of service (resource consumption) via unspecified vectors.