XSS in the agile wallboard gadget through quick filter names - CVE-2017-18100

The agile wallboard gadget in Atlassian Jira before version 7.8.1 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the name of quick filters.

Workaround

Disable the gadget.

• Navigate to Administration > Add-ons > Manage add-ons and set the filter to show Application Components.
• Scroll down the list of plugins and expand JIRA Agile.
• Click the "+" symbol next to the count of modules in this plugin to expand the list.
• Scroll down until you find the Agile board gadget and set it to disabled.