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.