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Thanks Moataz Al-Sharida and nawaik for reports. Co-authored-by: Shai Berger <shai@platonix.com> Co-authored-by: nessita <124304+nessita@users.noreply.github.com>
24 lines
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24 lines
1.0 KiB
Plaintext
==========================
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Django 4.1.9 release notes
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==========================
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*May 3, 2023*
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Django 4.1.9 fixes a security issue with severity "low" in 4.1.8.
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CVE-2023-31047: Potential bypass of validation when uploading multiple files using one form field
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=================================================================================================
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Uploading multiple files using one form field has never been supported by
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:class:`.forms.FileField` or :class:`.forms.ImageField` as only the last
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uploaded file was validated. Unfortunately, :ref:`uploading_multiple_files`
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topic suggested otherwise.
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In order to avoid the vulnerability, :class:`~django.forms.ClearableFileInput`
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and :class:`~django.forms.FileInput` form widgets now raise ``ValueError`` when
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the ``multiple`` HTML attribute is set on them. To prevent the exception and
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keep the old behavior, set ``allow_multiple_selected`` to ``True``.
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For more details on using the new attribute and handling of multiple files
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through a single field, see :ref:`uploading_multiple_files`.
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