Permissions, Privileges, and Access Controls
Unrestricted file upload vulnerability in filesystem3.class.php in eFront 3.5.1 build 2710 and earlier allows remote attackers to execute arbitrary code by uploading a file with an executable extension as an avatar, then accessing it via a direct request to the file in (1) student/avatars/ or (2) professor/avatars/.
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.