inc/central.class.php in GLPI before 0.84.2 does not attempt to make install/install.php unavailable after an installation is completed, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks, and (1) perform a SQL injection via an Etape_4 action or (2) execute arbitrary PHP code via an update_1 action.
https://forge.indepnet.net/projects/glpi/repository/revisions/21753
https://forge.indepnet.net/issues/4480
http://www.glpi-project.org/spip.php?page=annonce&id_breve=308