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Fencer Vulns
medium 6.1

CVE-2026-15920 json

Potential cross-site scripting via URLField values in the admin

published 2026-08-04 3 mo ago modified 2026-10-24 15 d ago also BIT-django-2026-15920 , EUVD-2026-52750

cvss
6.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits
0
none known

Summary

An issue was discovered in Django 5.2 before 5.2.17 and 6.0 before 6.0.8. `django.contrib.admin.utils.display_for_field()` renders `URLField` values as clickable links in the admin without validating the URL. A value stored with an unsafe scheme is displayed as a link on changelist and read-only admin pages, which allows cross-site scripting against staff users who click the link. Exploitation requires the unsafe value to already be stored in the database. `URLField` validation through a `ModelForm` or the admin rejects unsafe schemes, so this affects applications that persist `URLField` data without running model validation, for example through direct queryset writes, deserialization, or bulk import of untrusted input. Django would like to thank Egor Saltykov for reporting this issue.

Patch / fix

  • bitnami django 5.2.17, 6.0.8
  • djangoproject Django 5.2.17, 6.0.8
  • python-django Debian 12 3:3.2.25-0+deb12u4
  • python-django Debian 14 3:5.2.17-1

debian advisories DEBIAN-CVE-2026-15920

  • python-Django SLE Module for Package Hub 15 SP7 4.2.11-150600.3.65.1

suse advisories SUSE-SU-2026:3503-1

  • python-Django5 openSUSE Tumbleweed 5.2.17-1.1
  • python-Django openSUSE Leap 16.0 5.2.4-bp160.11.1
  • python-Django openSUSE Tumbleweed 6.0.8-1.1
  • python-Django4 openSUSE Tumbleweed 4.2.30-5.1

opensuse advisories openSUSE-SU-2026:11491-1openSUSE-SU-2026:21543-1openSUSE-SU-2026:11464-1openSUSE-SU-2026:11465-1

  • py3-django Alpine 3.24 5.2.17-r0

alpine advisories ALPINE-CVE-2026-15920

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2026-15920 updated cvss 5.4

django: Django: Cross-site scripting via unvalidated URLField values in the admin

  • Red Hat Ansible Automation Platform 2 python-django 5.2.12-2.el10ap, automation-controller 4.6.30-2.el9ap, ansible-automation-platform-24/hub-rhel8, ansible-automation-platform-25/hub-rhel8, ansible-automation-platform-26/hub-rhel9, ansible-automation-platform-27/hub-rhel9, +22 more
    affected: workaround, no fix available, no fix planned “Out of support scope”
  • Red Hat Discovery 2 discovery/discovery-server-rhel9
    affected: workaround, no fix available “Fix deferred”
  • Red Hat OpenStack Platform 16.2 python-django20, python3-django20, python-django20-bash-completion Red Hat OpenStack Platform 17.1 python3-django, python-django 5.2.12-2.el10ap
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat OpenStack Platform 18.0 python-django 5.2.12-2.el10ap Red Hat Satellite 6 python-django, python2-django, python-django 5.2.12-2.el10ap, python-django-bash-completion, satellite/iop-advisor-backend-rhel9
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Update Infrastructure 4 for Cloud Providers python-django 5.2.12-2.el10ap
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Update Infrastructure 5 rhui5/rhua-rhel9 Red Hat Self-service automation portal 2 ansible-automation-platform/bootc-automation-portal-rhel9
    affected: workaround, no fix available “Fix deferred”

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
no
Technical impact
partial
Assessed
3 mo ago

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA 4.0 5.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CNA 4.0 5.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
bitnami django
>=5.2.0, <5.2.17
>=6.0.0, <6.0.8
5.2.17
6.0.8

Affected products

  • djangoproject Django

Classification

Weakness
  • CWE-83 Improper Neutralization of Script in Attributes in a Web Page
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.