Multiple cross-site scripting (XSS) vulnerabilities in views/add-license-form.php in the Digium Addons module (digiumaddoninstaller) before 2.11.0.7 for FreePBX allow remote attackers to inject arbitrary web script or HTML via the (1) add_license_key, (2) add_license_first_name, (3) add_license_last_name, (4) add_license_company, (5) add_license_address1, (6) add_license_address2, (7) add_license_city, (8) add_license_state, (9) add_license_post_code, (10) add_license_country, (11) add_license_phone, or (12) add_license_email parameter in an add-license-form page to admin/config.php.