Multiple unrestricted file upload vulnerabilities in (1) back/upload_img.php and (2) admin/upload_img.php in Walter Beschmout PhpQuiz 1.2 and earlier allow remote attackers to upload arbitrary PHP code to the phpquiz/img_quiz folder via the (a) upload, (b) ok_update, (c) image, and (d) path parameters, possibly requiring directory traversal sequences in the path parameter.