CVE-2026-28223 MEDIUM

CVE-2026-28223: Wagtail: Improper escaping of HTML (Cross-site Scripting) in simple_translation admin interface

Vendor Wagtail
Product wagtail
Weakness CWE-79 · XSS
Published March 5, 2026
Last update March 6, 2026

CVSS base score

6.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N

What the vulnerability does

01Description

Wagtail is an open source content management system built on Django. Prior to versions 6.3.8, 7.0.6, 7.2.3, and 7.3.1, a stored cross-site scripting (XSS) vulnerability exists on confirmation messages within the wagtail.contrib.simple_translation module. A user with access to the Wagtail admin area may create a page with a specially-crafted title which, when another user performs the "Translate" action, causes arbitrary JavaScript code to run. This could lead to performing actions with that user's credentials. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. This issue has been patched in versions 6.3.8, 7.0.6, 7.2.3, and 7.3.1.

Key dates

02Disclosure timeline

March 5, 2026 CVE published
March 6, 2026 Record updated