parisneo/lollms version 9.5 is vulnerable to Local File Inclusion (LFI) attacks due to insufficient path sanitization. The `sanitize_path_from_endpoint` function fails to properly sanitize Windows-style paths (backward slash `\`), allowing attackers to perform directory traversal attacks on Windows systems. This vulnerability can be exploited through various routes, including `personalities` and `/del_preset`, to read or delete any file on the Windows filesystem, compromising the system's availability.
The PHP application receives input from an upstream component, but it does not restrict or incorrectly restricts the input before its usage in "require," "include," or similar functions.