Multiple cross-site scripting (XSS) vulnerabilities in TemaTres 1.0.3 and 1.031 allow remote attackers to inject arbitrary web script or HTML via the (1) search form; (2) _expresion_de_busqueda, (3) letra, (4) estado_id, and (5) tema parameters to index.php; the (6) PATH_INFO to index.php; (7) unspecified parameters when editing a term as specified by the edit_id and tema parameters to index.php; and the (7) y, (8) ord, and (9) m parameters to sobre.php.