Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Vulnerable versions of the Jupiter (<= 6.10.1) and JupiterX (<= 2.0.6) Themes allow logged-in users, including subscriber-level users, to perform Path Traversal and Local File inclusion. In the JupiterX theme, the jupiterx_cp_load_pane_action AJAX action present in the lib/admin/control-panel/control-panel.php file calls the load_control_panel_pane function. It is possible to use this action to include any local PHP file via the slug parameter. The Jupiter theme has a nearly identical vulnerability which can be exploited via the mka_cp_load_pane_action AJAX action present in the framework/admin/control-panel/logic/functions.php file, which calls the mka_cp_load_pane_action function.
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.