Affected versions of Atlassian Jira Server and Data Center allow authenticated but non-admin remote attackers to edit email batch configurations via an Improper Authorization vulnerability in the /secure/admin/ConfigureBatching!default.jspa endpoint. The affected versions are before version 8.20.7.

Affected versions of Atlassian Jira Server and Data Center allow authenticated yet non-administrator remote attackers to edit the File Replication settings via a Broken Access Control vulnerability in the `ReplicationSettings!default.jspa` endpoint. The affected versions are before version 8.6.0, from version 8.7.0 before 8.13.12, and from version 8.14.0 before 8.20.1.

Broken Authentication in Atlassian Connect Spring Boot (ACSB) from version 1.1.0 before version 2.1.3: Atlassian Connect Spring Boot is a Java Spring Boot package for building Atlassian Connect apps. Authentication between Atlassian products and the Atlassian Connect Spring Boot app occurs with a server-to-server JWT or a context JWT. Atlassian Connect Spring Boot versions from version 1.1.0 before version 2.1.3 erroneously accept context JWTs in lifecycle endpoints (such as installation) where only server-to-server JWTs should be accepted, permitting an attacker to send authenticated re-installation events to an app.

Affected versions of Atlassian Confluence Server allow remote attackers who have read permissions to a page, but not write permissions, to upload attachments via a Broken Access Control vulnerability in the attachments feature.

Support zip files in Atlassian Jira Server and Data Center before version 8.6.0 could be downloaded by a System Administrator user without requiring the user to re-enter their password via an improper authorization vulnerability.

The EditApplinkServlet resource in the Atlassian Application Links plugin before version 5.4.20, from version 6.0.0 before version 6.0.12, from version 6.1.0 before version 6.1.2, from version 7.0.0 before version 7.0.1, and from version 7.1.0 before version 7.1.3 allows remote attackers who have obtained access to administrator's session to access the EditApplinkServlet resource without needing to re-authenticate to pass "WebSudo" in products that support "WebSudo" through an improper access control vulnerability.

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 /json/profile/removeStarAjax.do resource in Atlassian Fisheye and Crucible before version 4.8.0 allows remote attackers to remove another user's favourite setting for a project via an improper authorization vulnerability.

The WorkflowResource class removeStatus method in Jira before version 7.13.12, from version 8.0.0 before version 8.4.3, and from version 8.5.0 before version 8.5.2 allows authenticated remote attackers who do not have project administration access to remove a configured issue status from a project via a missing authorisation check.

The /profile/deleteWatch.do resource in Atlassian Fisheye and Crucible before version 4.8.1 allows remote attackers to remove another user's watching settings for a repository via an improper authorization vulnerability.

This High severity Path Traversal (Arbitrary Write) vulnerability was introduced in versions: 9.12.0, 10.3.0 and remain present in 11.0.0 of Jira Software Data Center and Server. This Path Traversal (Arbitrary Write) vulnerability, with a CVSS Score of 8.7, allows an attacker to modify any filesystem path writable by the Jira JVM process. Atlassian recommends that Jira Software Data Center and Server customers upgrade to the latest version; if you are unable to do so, upgrade your instance to one of the specified supported fixed versions: Jira Software Data Center and Server 9.12: Upgrade to a release greater than or equal to 9.12.28 Jira Software Data Center and Server 10.3: Upgrade to a release greater than or equal to 10.3.12 Jira Software Data Center and Server 11.0: Upgrade to a release greater than or equal to 11.1.0 See the release notes. You can download the latest version of Jira Software Data Center and Server from the download center. This vulnerability was reported via our Atlassian (Internal) program.

An improper authorization vulnerability exists in Jenkins Crowd 2 Integration Plugin 2.0.0 and earlier in CrowdSecurityRealm.java that allows attackers to have Jenkins perform a connection test, connecting to an attacker-specified server with attacker-specified credentials and connection settings.

The inline-create rest resource in Jira before version 7.12.3 allows authenticated remote attackers to set the reporter in issues via a missing authorisation check.

Broken Authentication in Atlassian Connect Express (ACE) from version 3.0.2 before version 6.6.0: Atlassian Connect Express is a Node.js package for building Atlassian Connect apps. Authentication between Atlassian products and the Atlassian Connect Express app occurs with a server-to-server JWT or a context JWT. Atlassian Connect Express versions from 3.0.2 before 6.6.0 erroneously accept context JWTs in lifecycle endpoints (such as installation) where only server-to-server JWTs should be accepted, permitting an attacker to send authenticated re-installation events to an app.