SOPlanning 1.53.00 is vulnerable to a directory traversal issue in /process/upload.php. The "fichier_to_delete" parameter allows authenticated attackers to specify file paths containing directory traversal sequences (e.g., ../). This vulnerability enables attackers to delete arbitrary files outside the intended upload directory, potentially leading to denial of service or disruption of application functionality.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.