GFI Archiver < 15.13 Stored XSS via FAARetentionPolicyWizard.aspx

GFI Archiver before 15.13 contains a stored cross-site scripting vulnerability in the File History Retention Policy configuration that allows authenticated attackers to inject arbitrary web script or HTML via the policy name parameter to /Archiver/FAARetentionPolicyWizard.aspx. The injected payload is stored by RetentionPolicyWizard.SaveAllConfigSettings() without output encoding and is executed in the browsers of users who subsequently view the File History Retention Policies page.