Multiple unrestricted file upload vulnerabilities in Kusaba 1.0.4 and earlier allow remote authenticated users to execute arbitrary code by uploading a file with an executable extension using (1) load_receiver.php or (2) a shipainter action to paint_save.php, then accessing the uploaded file via a direct request to this file in their user directory.
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.