CVE-2026-28222
Wagtail: Improper escaping of HTML (Cross-site Scripting) on TableBlock class attributes
Description
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.
INFO
Published Date :
March 5, 2026, 8:16 p.m.
Last Modified :
March 5, 2026, 8:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-28222
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Wagtail to version 6.3.8 or later.
- Update Wagtail to version 7.0.6 or later.
- Update Wagtail to version 7.2.3 or later.
- Update Wagtail to version 7.3.1 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-28222.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-28222 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-28222
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-28222 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-28222 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Mar. 05, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N Added CWE CWE-79 Added Reference https://github.com/wagtail/wagtail/commit/0375094bb57ce6e527005c2bb2e871dd20bca04d Added Reference https://github.com/wagtail/wagtail/commit/4620423cb22c5253391a0f04178089c1162f6e2e Added Reference https://github.com/wagtail/wagtail/commit/575c0d7c18c7716ed73f7a3c2720ad75956f0a85 Added Reference https://github.com/wagtail/wagtail/commit/605a5569686565e035313222e1bc2f9802fbc55b Added Reference https://github.com/wagtail/wagtail/releases/tag/v6.3.8 Added Reference https://github.com/wagtail/wagtail/releases/tag/v7.0.6 Added Reference https://github.com/wagtail/wagtail/releases/tag/v7.2.3 Added Reference https://github.com/wagtail/wagtail/releases/tag/v7.3.1 Added Reference https://github.com/wagtail/wagtail/security/advisories/GHSA-p5cm-246w-84jm