include/userlogin.class.php in DeDeCMS 5.5 GBK, when session.auto_start is enabled, allows remote attackers to bypass authentication and gain administrative access via a value of 1 for the _SESSION[dede_admin_id] parameter, as demonstrated by a request to uploads/include/dialog/select_soft_post.php.
| Software | From | Fixed in |
|---|---|---|
| dedecms / dedecms | 5.5 | 5.5.x |