In \lib\admin\action\dataaction.class.php in Gxlcms v2.0, the database backup filename generation uses mt_rand() unsafely, resulting in predictable database backup file locations.
The add function in www/Lib/Lib/Action/Admin/TplAction.class.php in Gxlcms v1.1.4 allows remote attackers to read arbitrary files via a crafted index.php?s=Admin-Tpl-ADD-id request, related to Lib/Common/Admin/function.php.
Gxlcms uses an unsafe character-replacement approach in an attempt to restrict access, which allows remote attackers to read arbitrary files via modified pathnames in the s parameter to index.php, related to Lib/Admin/Action/TplAction.class.php and Lib/Admin/Common/function.php.