Improper Input Validation
Unrestricted file upload vulnerability in process.php in Tizag Countdown Creator 3 allows remote attackers to execute arbitrary code by uploading a file with an executable extension via index.php, then accessing the uploaded file via a direct request to the file in pics/. NOTE: some of these details are obtained from third party information.
CWE-20 - 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.