Permissions, Privileges, and Access Controls
avatar_upload.asp in Avatar MOD 1.3 for Snitz Forums 3.4, and possibly other versions, allows remote attackers to bypass file type checks and upload arbitrary files via a null byte in the file name, as discovered by the Codescan product.
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.