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Use file_exists to check for an uploaded file.#6664
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It turns out that stream_resolve_include_path doesn't work for a default Windows install where upload_tmp_dir is set to C:\Windows\Temp. I'm unclear if this is intended PHP behaviour or not, but the upload file validator should not be checking for a file of the same name on the include path regardless.
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I think is_file() is more specific, because file_exists() also returns true when it is a directory. It looks to me using file_exists() creates a way for hackers to "scan" the system for specific folders?
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Good point @Martin-P. I've updated the PR. |
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Use file_exists to check for an uploaded file.
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@akrabat seems to be still a bug on windows with default path. Not in this validator, but in |
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…ix/uploadfile Use file_exists to check for an uploaded file.
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It turns out that stream_resolve_include_path doesn't work for a default
Windows install where upload_tmp_dir is set to C:\Windows\Temp. I'm
unclear if this is intended PHP behaviour or not, but the upload file
validator should not be checking for a file of the same name on the
include path regardless.