upload.php in tianchoy/blog through 2017-09-12 allows unrestricted file upload and PHP code execution by using the image/jpeg, image/pjpeg, image/png, or image/gif content type for a .php file.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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