GLPI is a free asset and IT management software package. In versions starting from 0.71 to before 10.0.23 and before 11.0.5, when remote authentication is used, based on SSO variables, a user can steal a GLPI session previously opened by another user on the same machine. This issue has been patched in versions .
inc/ticket.class.php in GLPI 0.83.9 and earlier allows remote attackers to unserialize arbitrary PHP objects via the predefinedfields parameter to front/ticket.form.php.