Webtrees 2.1.18 is vulnerable to Directory Traversal. By manipulating the "media_folder" parameter in the URL, an attacker (in this case, an administrator) can navigate beyond the intended directory (the 'media/' directory) to access sensitive files in other parts of the application's file system.

Affected: Packagist: fisharebest/webtrees

Webtrees 2.1.18 is vulnerable to Directory Traversal. By manipulating the "media_folder" parameter in the URL, an attacker (in this case, an administrator) can navigate beyond the intended directory (the 'media/' directory) to access sensitive files in other parts of the application's file system.