Multiple cross-site scripting (XSS) vulnerabilities in PHProjekt 5.2.0, when magic_quotes_gpc is disabled, allow remote authenticated users to inject arbitrary web script or HTML via unspecified vectors to the (1) Projects, (2) Contacts, (3) Helpdesk, (4) Search (only Gecko engine driven Browsers), and (5) Notes modules; the (6) Mail summary page; and unspecified other files.