GFI Archiver < 15.13 Stored XSS via CategorizationPolicyWizard.aspx

GFI Archiver before 15.13 contains a stored cross-site scripting vulnerability in the Classification Rules configuration that allows authenticated attackers to inject arbitrary web script or HTML via the rule name and email criteria parameters to /Archiver/CategorizationPolicyWizard.aspx. The injected payload is stored by CategorizationPolicyWizard.SaveAllConfigSettings() without output encoding and is executed in the browsers of users who subsequently view the Classification Rules page.