webTareas through 2.1 allows XSS in clients/editclient.php, extensions/addextension.php, administration/add_announcement.php, administration/departments.php, administration/locations.php, expenses/claim_type.php, projects/editproject.php, and general/newnotifications.php.
The loginForm within the general/login.php webpage in webTareas 2.0p8 suffers from a Reflected Cross Site Scripting (XSS) vulnerability via the query string.