Wagtail up to 7.0.7/7.3.2/7.4.1 Admin Interface cross site scripting

Summaryinfo

A vulnerability was found in Wagtail up to 7.0.7/7.3.2/7.4.1. It has been declared as problematic. Impacted is an unknown function of the component Admin Interface. Such manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2026-54263. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Wagtail up to 7.0.7/7.3.2/7.4.1 and classified as problematic. Affected by this issue is some unknown processing of the component Admin Interface. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. 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. Impacted is integrity. CVE summarizes:

Wagtail is an open source content management system built on Django. In versions prior to 7.0.8, 7.3.3 and 7.4.2, reflected cross-site scripting (XSS) vulnerability exists on the dynamic image URL generator view within the Wagtail admin interface. A user with a limited-permission editor account for the Wagtail admin could craft a URL that, when viewed by a user with higher privileges, could perform actions with that user's credentials. The vulnerability is present for all sites, even if they do not enable the dynamic image serve view. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. This issue has been fixed in versions 7.0.8, 7.3.3, and 7.4.2.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-54263 since 06/12/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 7.0.8, 7.3.3 or 7.4.2 eliminates this vulnerability.

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Productinfo

Name

• Wagtail

Version

• 7.0.0
• 7.0.1
• 7.0.2
• 7.0.3
• 7.0.4
• 7.0.5
• 7.0.6
• 7.0.7
• 7.3.0
• 7.3.1
• 7.3.2
• 7.4.0
• 7.4.1

Website

• Product: https://github.com/wagtail/wagtail/

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