Media

Wagtail: Improper restriction handling on Pages admin API

Publicada: 20.08.2026
Actualizado: 11.10.2026 15:18

Impact

The internal Pages admin API incorrectly returns page fields without access control when they are declared in api_fields. A user with access to the Wagtail admin can use this API to fetch draft and live page fields’ contents that are part of api_fields on the base page model (title, slug, seo_title, search_description), as well as all custom fields declared in api_fields.

The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin.

Patches

Patched versions have been released as Wagtail 7.0.9, 7.3.4, 7.4.3 and 8.0rc2.

Workarounds

Site owners unable to upgrade can apply the fix by overriding the relevant method on PagesAdminAPIViewSet to patch all vulnerable admin API endpoints:

python

# wagtail_hooks.py or AppConfig.ready()

from wagtail.admin.api.views import PagesAdminAPIViewSet
from wagtail.permissions import page_permission_policy


def _restricted_get_base_queryset(self):
    return page_permission_policy.explorable_instances(self.request.user)

PagesAdminAPIViewSet.get_base_queryset = _restricted_get_base_queryset

Acknowledgements

Many thanks to xuliang@QAX for reporting this issue.

For more information

If you have any questions or comments about this advisory:

Visit Wagtail's support channels
Email us at security@wagtail.org (view our security policy for more information).

Software afectado

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Plataforma	Paquete	Versiones vulnerables	Corregida en
Python (PyPI)	wagtail	< 7.0.9, >= 7.1, < 7.3.4, >= 7.4, < 7.4.3, >= 8.0rc1, < 8.0rc2	7.0.9, 7.3.4, 7.4.3, 8.0rc2

Referencias

Puntuación CVSS 4.3/10

Vector CVSS: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Debilidad (CWE): CWE-280
Plataforma: Python (PyPI)
Paquete: wagtail
Publicada: 20.08.2026
Actualizado: 11.10.2026 15:18

Fuentes y licencias

OSV / GitHub Advisory Database - PYSEC-2026-3939 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-3vrh-m9w7-v94f - CC BY 4.0

Historial de vulnerabilidades: wagtail

Todas las vulnerabilidades publicadas de este paquete (Python (PyPI)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.

Todas (30) en el archivo

Entradas en total: 30
Primera → última: 04.2020 08.2026
Sin corrección: 0
Explotada en ataques: 0

Distribución por gravedad

Alta 5
Media 22
Baja 3

Divulgaciones por año

2020: 3
2021: 2
2022: 1
2023: 3
2024: 3
2025: 0
2026: 18

20.08.2026

Wagtail: Improper restriction handling on Pages admin API esta entrada

Media · 4.3 CVE-2026-55468 < 7.0.9, >= 7.1, < 7.3.4, >= 7.4, < 7.4.3, >= 8.0rc1, < 8.0rc2 7.0.9, 7.3.4, 7.4.3, 8.0rc2
01.07.2026

Wagtail: Reflected XSS in dynamic image URL generator view

Alta · 7.3 CVE-2026-54263 >= 7.3, < 7.3.3, >= 7.4, < 7.4.2 7.3.3, 7.4.2
11.07.2024

Wagtail regular expression denial-of-service via search query parsing

Alta · 6.5 CVE-2024-39317 >= 6.0, < 6.0.6, >= 6.1, < 6.1.3, >= 2.0, < 5.2.6 6.0.6, 6.1.3, 5.2.6
03.04.2023

Wagtail vulnerable to stored Cross-site Scripting attack via ModelAdmin views

Alta · 6.4 CVE-2023-28836 >= 1.5, < 4.1.4, >= 4.2, < 4.2.2 4.1.4, 4.2.2
19.04.2021

Improper validation of URLs ('Cross-site Scripting') in Wagtail rich text fields

Alta · 6.1 CVE-2021-29434 < 2.11.7, >= 2.12, < 2.12.4 2.11.7, 2.12.4
20.07.2020

Cross-Site Scripting in Wagtail

Alta · 5.7 CVE-2020-15118 >= 2.8rc1, < 2.9.3, < 2.7.4 2.9.3, 2.7.4

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