CVE-2026-54263 in Wagtail
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.
Quick answer
Torchbox Wagtail should be reviewed and updated if it matches the affected versions. The recommended fix is to apply the vendor-supported patched version or the mitigation steps below, then retest the public website with Fixnx.
Who is affected
Affected versions
- Wagtail before 7.0.8
- Wagtail 7.1.0 through versions before 7.3.3
- Wagtail 7.4.0 through versions before 7.4.2
Fixed versions
- Wagtail 7.0.8 or later on the 7.0 branch
- Wagtail 7.3.3 or later on the 7.3 branch
- Wagtail 7.4.2 or later
How to fix it
CVE-2026-54263 affects Wagtail. The issue means a user may be tricked into opening a page that runs unsafe script in the admin area. Treat it as a priority if this software is reachable by users, admins, browsers, or the network. Update to Wagtail 7.0.8 or later on the 7.0 branch, or follow the linked vendor advisory if your branch needs a backport.
- Inventory every Wagtail install, package, server, browser, or managed device in use.
- Compare installed versions with the affected range: Wagtail before 7.0.8; Wagtail 7.1.0 through versions before 7.3.3; Wagtail 7.4.0 through versions before 7.4.2.
- Update to Wagtail 7.0.8 or later on the 7.0 branch.
- If you cannot update today, restrict access to trusted users and trusted networks only.
- Review logs for crashes, failed requests, privilege changes, unusual data access, or exploit alerts.
- Rotate secrets, tokens, and passwords if exposure or abuse is suspected.
- Document the update and keep the advisory link with the change record.
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Verify the fix
- Confirm the installed version matches the fixed guidance: Wagtail 7.0.8 or later on the 7.0 branch; Wagtail 7.3.3 or later on the 7.3 branch; Wagtail 7.4.2 or later.
- Confirm risky admin, API, browser, or network exposure is reduced.
- Retest the affected workflow after the update or mitigation.
- Review logs again after patching for repeated suspicious activity.
- Run a new Fixnx scan where the affected software is part of the public site.
Related categories
Trusted references
FAQ
What is affected by CVE-2026-54263?
Torchbox Wagtail versions listed as affected should be reviewed: Wagtail before 7.0.8, Wagtail 7.1.0 through versions before 7.3.3, Wagtail 7.4.0 through versions before 7.4.2.
What should I fix first?
Start with internet-facing sites, admin panels, login flows, plugins, themes, modules, packages, and systems that process user-controlled input or sensitive data.
How do I confirm the fix worked?
Apply the patched version or mitigation, clear caches where relevant, retest the affected workflow, and run a new Fixnx scan to verify public website exposure signals.
How are Fixnx security risk categories chosen?
Fixnx keeps one canonical risk page and assigns only broad, relevant categories such as ecosystem, technology area, or vulnerability class.