GFI Archiver < 15.13 Stored XSS via RetentionPolicyWizard.aspx

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