Permissions, Privileges, and Access Controls
member.php in Crossday Discuz! Board allows remote attackers to reset passwords of arbitrary users via crafted (1) lostpasswd and (2) getpasswd actions, possibly involving predictable generation of the id parameter.
CWE-264 - Permissions Privileges and Access Controls
CWE 264 (permissions, privileges, and access controls) is not a weakness in and of itself, rather it is a category of weaknesses related to the management of permissions, privileges, and other security features used to perform access control. If not addressed, the weaknesses in this category allow attackers to gain privileges for an unintended sphere of control, access sensitive information, and execute arbitrary commands.