CVE-2026-28222

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 rendering TableBlock blocks within a StreamField. A user with access to create or edit pages containing TableBlock StreamField blocks is able to set specially-crafted class attributes on the block which run arbitrary JavaScript code when the page is viewed. When viewed by a user with higher privileges, 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, and only affects sites using TableBlock. This issue has been patched in versions 6.3.8, 7.0.6, 7.2.3, and 7.3.1.

The following products are affected by CVE-2026-28222 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-28222.

URL	Resource
https://github.com/wagtail/wagtail/commit/0375094bb57ce6e527005c2bb2e871dd20bca04d
https://github.com/wagtail/wagtail/commit/4620423cb22c5253391a0f04178089c1162f6e2e
https://github.com/wagtail/wagtail/commit/575c0d7c18c7716ed73f7a3c2720ad75956f0a85
https://github.com/wagtail/wagtail/commit/605a5569686565e035313222e1bc2f9802fbc55b
https://github.com/wagtail/wagtail/releases/tag/v6.3.8
https://github.com/wagtail/wagtail/releases/tag/v7.0.6
https://github.com/wagtail/wagtail/releases/tag/v7.2.3
https://github.com/wagtail/wagtail/releases/tag/v7.3.1
https://github.com/wagtail/wagtail/security/advisories/GHSA-p5cm-246w-84jm