CVE-2023-31047

In Django 3.2 before 3.2.19, 4.x before 4.1.9, and 4.2 before 4.2.1, it was possible to bypass validation when using one form field to upload multiple files. This multiple upload has never been supported by forms.FileField or forms.ImageField (only the last uploaded file was validated). However, Django's "Uploading multiple files" documentation suggested otherwise.

• CWE-20
• CWE-862

• https://docs.djangoproject.com/en/4.2/releases/security/Vendor Advisory
• https://groups.google.com/forum/#%21forum/django-announce
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A45VKTUVQ2BN6D5ZLZGCM774R6QGFOHW/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DNEHD6N435OE2XUFGDAAVAXSYWLCUBFD/
• https://security.netapp.com/advisory/ntap-20230609-0008/
• https://www.djangoproject.com/weblog/2023/may/03/security-releases/Vendor Advisory
• https://docs.djangoproject.com/en/4.2/releases/security/Vendor Advisory
• https://groups.google.com/forum/#%21forum/django-announce
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A45VKTUVQ2BN6D5ZLZGCM774R6QGFOHW/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DNEHD6N435OE2XUFGDAAVAXSYWLCUBFD/
• https://security.netapp.com/advisory/ntap-20230609-0008/
• https://www.djangoproject.com/weblog/2023/may/03/security-releases/Vendor Advisory

Published

May 7, 2023

Last Modified

Jun 17, 2026

Status

Modified

• Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
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