Unrestricted file upload vulnerability in the Tribulant Slideshow Gallery plugin before 1.4.7 for WordPress allows remote authenticated users to execute arbitrary code by uploading a PHP file, then accessing it via a direct request to the file in wp-content/uploads/slideshow-gallery/.
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.