Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Directory traversal vulnerability in Advanced Electron Forum (AEF) 1.x allows remote attackers to determine the existence of arbitrary files via the avatargalfile parameter when changing an avatar, which leaks the existence of the file in an error message. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
CWE-22 - Path Traversal
Path traversal (or directory traversal), is a vulnerability that allows malicious users to traverse the server's root directory, gaining access to arbitrary files and folders such as application code & data, back-end credentials, and sensitive operating system files. In the worst-case scenario, an attacker could potentially execute arbitrary files on the server, resulting in a denial of service attack. Such an exploit may severely impact the integrity, confidentiality, and availability of an application.