Django - 4.1.9
Security
Django 4.1.9 release notes
May 3, 2023
Django 4.1.9 fixes a security issue with severity “low” in 4.1.8.
CVE-2023-31047: Potential bypass of validation when uploading multiple files using one form field
Uploading multiple files using one form field has never been supported by
forms.FileField
or forms.ImageField
as only the last
uploaded file was validated. Unfortunately, Uploading multiple files
topic suggested otherwise.
In order to avoid the vulnerability, ClearableFileInput
and FileInput
form widgets now raise ValueError
when
the multiple
HTML attribute is set on them. To prevent the exception and
keep the old behavior, set allow\_multiple\_selected
to True
.
For more details on using the new attribute and handling of multiple files
through a single field, see Uploading multiple files.
Security
Details
date
May 3, 2023, 11:56 a.m.
type
Patch
official page
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