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Fencer Vulns
critical 9.8

CVE-2023-31047 in the critical feed json

Django bypasses validation when using one form field to upload multiple files

published 2023-05-07 3 y ago modified 2026-09-08 2 mo ago also BIT-django-2023-31047 , EUVD-2023-0071 , GHSA-r3xc-prgr-mg9p , PYSEC-2023-61

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

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.

Patch / fix

  • pypi django 3.2.19, 4.1.9, 4.2.1
  • bitnami django 3.2.19, 4.1.9
  • djangoproject django 3.2.19, 4.1.9
  • python-django Debian 14, Debian 13, Debian 12 3:3.2.19-1

debian advisories DEBIAN-CVE-2023-31047

  • python-django Ubuntu 18.04 LTS 1:1.11.11-1ubuntu1.21
  • python-django Ubuntu 20.04 LTS 2:2.2.12-1ubuntu0.17
  • python-django Ubuntu 22.04 LTS 2:3.2.12-2ubuntu1.6
  • python-django Ubuntu Pro 14.04 LTS 1.6.11-0ubuntu1.3+esm6
  • python-django Ubuntu Pro 16.04 LTS 1.8.7-1ubuntu5.15+esm7

ubuntu advisories UBUNTU-CVE-2023-31047

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • foreman satellite utils 6.14, satellite capsule 6.14, satellite 6.14 3.7.0.9-1.el8sat
  • foreman-cli satellite utils 6.14, satellite 6.14 3.7.0.9-1.el8sat
  • foreman-ec2 satellite 6.14 3.7.0.9-1.el8sat
  • rubygem-git satellite 6.14, satellite 6.13 1.18.0-1.el8sat
  • puppet-agent satellite capsule 6.14, satellite capsule 6.13, satellite 6.14 +1 more 7.26.0-3.el8sat
  • puppetserver satellite capsule 6.14, satellite 6.14 7.11.0-1.el8sat
  • rubygem-rack satellite capsule 6.14, satellite 6.14 2.2.7-1.el8sat
  • foreman-ovirt satellite 6.14 3.7.0.9-1.el8sat

red hat advisories RHSA-2023:6818RHSA-2023:5931RHSA-2023:4591

  • python-Django openSUSE Leap 15.5 2.0.7-150000.1.11.1

suse advisories SUSE-SU-2023:2839-1

  • python-Django5 openSUSE Tumbleweed 5.2.16-1.1
  • python-Django openSUSE Tumbleweed 5.2.16-1.1
  • python-Django4 openSUSE Tumbleweed 4.2.30-4.1
  • python-Django6 openSUSE Tumbleweed 6.0-1.1
  • python-Django4 openSUSE Tumbleweed 4.2.14-1.1
  • python-Django openSUSE Tumbleweed 4.2.1-1.1

opensuse advisories openSUSE-SU-2026:11270-1openSUSE-SU-2026:11248-1openSUSE-SU-2026:11235-1openSUSE-SU-2026:10005-1openSUSE-SU-2024:14208-1openSUSE-SU-2024:12943-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-31047 updated cvss 6.5

python-django: Potential bypass of validation when uploading multiple files using one form field

  • Red Hat Satellite 6.13 for RHEL 8 python-django 3.2.21-1.el8pc, python39-django 3.2.21-1.el8pc
    fixed: vendor fix RHSA-2023:5931
  • Red Hat Satellite 6.14 for RHEL 8 python-django 3.2.21-1.el8pc, python39-django 3.2.21-1.el8pc
    fixed: vendor fix RHSA-2023:6818
  • Red Hat RHUI 4 for RHEL 8 python-django 3.2.19-1.0.1.el8ui, python39-django 3.2.19-1.0.1.el8ui
    fixed: vendor fix RHSA-2023:4591
  • Red Hat Ansible Automation Platform 2 python-django Red Hat Ceph Storage 3 python-django, python-django-bash-completion Red Hat OpenStack Platform 13 (Queens) python-django, python2-django, python-django-bash-completion Red Hat OpenStack Platform 16.1 python-django20, python3-django20, python-django20-bash-completion Red Hat OpenStack Platform 16.2 python-django20, python3-django20, python-django20-bash-completion Red Hat OpenStack Platform 17.0 python3-django
    +4 more products
    Red Hat Satellite 6.13 for RHEL 8 foreman 3.5.1.23-1.el8sat, satellite 6.13.5-1.el8sat, rubygem-git 1.18.0-1.el8sat, puppet-agent 7.26.0-3.el8sat, foreman-cli 3.5.1.23-1.el8sat, foreman-ec2 3.5.1.23-1.el8sat, +24 more Red Hat Satellite 6.14 for RHEL 8 cjson 1.7.14-5.el8sat, katello 4.9.0-1.el8sat, libsolv 0.7.22-4.el8pc, libcomps 0.1.18-4.el8pc, python-idna 3.3-2.el8pc, candlepin 4.3.1-1.el8sat, +667 more Red Hat Storage 3 python-django, python2-django, python-django-bash-completion Red Hat RHUI 4 for RHEL 8 rhui-tools 4.5.0.5-1.el8ui, rhui-installer 4.5.0.1-1.el8ui, rhui-tools-libs 4.5.0.5-1.el8ui, python-sqlparse 0.4.4-1.0.1.el8ui, python39-sqlparse 0.4.4-1.0.1.el8ui
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
21 mo ago

Exploit prediction

1.39% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
pypi django
>=3.2a1, <3.2.19
>=4.0a1, <4.1.9
>=4.2a1, <4.2.1
>=3.2, <3.2.19
>=4.0, <4.1.9
>=4.2, <4.2.1
3.2.19
4.1.9
4.2.1
bitnami django
>=3.2.0, <3.2.19
>=4.0.0, <4.1.9
>=4.2.0, <=4.2.0
3.2.19
4.1.9

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.