Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
A vulnerability, which was classified as critical, was found in IP Blacklist Cloud Plugin up to 3.42 on WordPress. This affects the function valid_js_identifier of the file ip_blacklist_cloud.php of the component CSV File Import. The manipulation of the argument filename leads to path traversal. It is possible to initiate the attack remotely. Upgrading to version 3.43 is able to address this issue. The name of the patch is 6e6fe8c6fda7cbc252eef083105e08d759c07312. It is recommended to upgrade the affected component. The identifier VDB-227757 was assigned to this vulnerability.
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.