ATutor 2.2.4 allows Arbitrary File Upload and Directory Traversal, resulting in remote code execution via a ".." pathname in a ZIP archive to the mods/_core/languages/language_import.php (aka Import New Language) or mods/_standard/patcher/index_admin.php (aka Patcher) component.
https://github.com/fuzzlove/ATutor-2.2.4-Language-Exploit
http://incidentsecurity.com/atutor-2-2-4-language_import-arbitrary-file-upload-rce/