Multiple cross-site scripting (XSS) vulnerabilities in roomcloud.php in the Roomcloud plugin before 1.3 for WordPress allow remote attackers to inject arbitrary web script or HTML via the (1) pin, (2) start_day, (3) start_month, (4) start_year, (5) end_day, (6) end_month, (7) end_year, (8) lang, (9) adults, or (10) children parameter.