Critical severity · published May 7, 2023
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
9.8
CVSS
1.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DJ
Django · Djangoproject
3.2 before 3.2.19; 4.0 before 4.1.9; 4.2; 4.2; 4.2 · source: NVD
FE
Fedora · Fedoraproject
38 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-31047
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-31047
Vendor Advisory
https://docs.djangoproject.com/en/4.2/releases/security/
groups.google.com
https://groups.google.com/forum/#%21forum/django-announce
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A45VKTUVQ2BN6D5ZLZGCM774R6QGFOHW/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DNEHD6N435OE2XUFGDAAVAXSYWLCUBFD/
security.netapp.com
https://security.netapp.com/advisory/ntap-20230609-0008/
Vendor Advisory
https://www.djangoproject.com/weblog/2023/may/03/security-releases/
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