This High severity XXE (XML External Entity Injection) vulnerability was introduced in version 11.2.0 of Jira Software Data Center and Server.

This XXE (XML External Entity Injection) vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N allows an unauthenticated attacker to access local and remote content which has high impact to confidentiality, no impact to integrity, no impact to availability, and requires no user interaction.

Atlassian recommends that Jira Software Data Center and Server customers upgrade to 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 11.2: Upgrade to a release greater than or equal to 11.2.1

See the release notes. You can download the latest version of Jira Software Data Center and Server from the download center.

The National Vulnerability Database provides the following description for this vulnerability: ** UNSUPPORTED WHEN ASSIGNED **

The value set as the DefaultLocaleResolver.LOCALE_KEY attribute on the session was not validated while resolving XML definition files, leading to possible path traversal and eventually SSRF/XXE when passing user-controlled data to this key. Passing user-controlled data to this key may be relatively common, as it was also used like that to set the language in the 'tiles-test' application shipped with Tiles.

This issue affects Apache Tiles from version 2 onwards.

NOTE: This vulnerability only affects products that are no longer supported by the maintainer.