CVE-2026-28223: Wagtail Vulnerable to Cross-site Scripting in simple_translation admin interface

CVE-2026-28223 · Severity: low · CVSS 3.1 · Published 2026-03-05

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.

Technologies: wagtail (PyPI). Vendors: PyPI.

Quick answers

Is CVE-2026-28223 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-28223 being exploited in the wild.
How severe is CVE-2026-28223?
Low severity, with a CVSS score of 3.1, published 5 March 2026.
Which products and versions are affected?
wagtail (PyPI) ECOSYSTEM:introduced=0,fixed=6.3.8, ECOSYSTEM:introduced=0,fixed=6.3.8,introduced=6.4,fixed=7.0.6,introduced=7.1,fixed=7.2.3.
Is there a fix for CVE-2026-28223?
Yes. wagtail (PyPI): upgrade to 6.3.8, 7.2.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-28223?
Check whether you run wagtail (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • wagtail (PyPI): upgrade to 6.3.8, 7.2.3 or later
    pip install "wagtail>=7.2.3"

Affected products

  • wagtail (PyPI) ECOSYSTEM:introduced=0,fixed=6.3.8, ECOSYSTEM:introduced=0,fixed=6.3.8,introduced=6.4,fixed=7.0.6,introduced=7.1,fixed=7.2.3

Identifiers

  • CVE-2026-28223
  • GHSA-p4v8-rw59-93cq
  • PYSEC-2026-2308

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