Skip to content

Wagtail Vulnerable to Cross-site Scripting in simple_translation admin interface

Moderate severity GitHub Reviewed Published Mar 3, 2026 in wagtail/wagtail • Updated Mar 5, 2026

Package

pip wagtail (pip)

Affected versions

< 6.3.8
>= 6.4rc1, < 7.0.6
>= 7.1rc1, < 7.2.3
>= 7.3rc1, < 7.3.1

Patched versions

6.3.8
7.0.6
7.2.3
7.3.1

Description

Impact

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.

Patches

Patched versions have been released as Wagtail 6.3.8, 7.0.6, 7.2.3 and 7.3.1.

Workarounds

None

Acknowledgements

Many thanks to Guan Chenxian (@GCXWLP) for reporting this issue.

For more information

If there are any questions or comments about this advisory:

References

@gasman gasman published to wagtail/wagtail Mar 3, 2026
Published to the GitHub Advisory Database Mar 3, 2026
Reviewed Mar 3, 2026
Published by the National Vulnerability Database Mar 5, 2026
Last updated Mar 5, 2026

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(37th percentile)

Weaknesses

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Learn more on MITRE.

CVE ID

CVE-2026-28223

GHSA ID

GHSA-p4v8-rw59-93cq

Source code

Credits

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.