Only the file extensions are checked, not the MIME types as configured
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The tool is not working as hoped. File access control speaks of MIME types that are blocked or not blocked. In fact, only the file extensions are checked. If a user renames an unauthorized file to an allowed file, he can upload and download it. The MIME type of the current file is insignificant, …
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阅读 HackerOne 原文 ↗作者 @teaport · 版权归作者与 Nextcloud 所有