CVE-2026-54263
HighCVSS 7.3Exploitation Probability (EPSS)
Low risk10th percentile - higher than 10% of all known CVEs
Summary
In Wagtail, a Django-based CMS, versions prior to 7.0.8, 7.3.3, and 7.4.2 contain a reflected XSS vulnerability in the dynamic image URL generator view within the admin interface. A low-privileged editor can craft a malicious URL that, when viewed by an admin, executes actions with admin credentials.
Risk Assessment
The risk is privilege escalation from an editor account to an admin account, potentially allowing unauthorized changes to content or system configuration.
Recommendation
Upgrade Wagtail to version 7.0.8, 7.3.3, or 7.4.2 immediately. Restricting admin panel access to trusted users reduces the attack surface.
Other vulnerabilities in Wagtail
See all- CVE-2026-55468Medium
Wagtail's internal Pages admin API returns page fields declared in api_fields without sufficient access control, allowing users with admin access to retrieve restricted draft and live content. Fixed in versions 7.0.9, 7.3.4, 7.4.3, and 8.0rc2.
- CVE-2026-54262Medium
In Wagtail, an open source content management system built on Django, versions prior to 7.0.8, 7.3.3, and 7.4.2 allow a low-level user with the 'Can submit translation' permission to create translations for any page, including those they do not have permissions for. This issue has been fixed in versions 7.0.8, 7.3.3, and 7.4.2.
- CVE-2026-54261Medium
In Wagtail, an open source CMS built on Django, a missing permission check on the image preview endpoint allows users with Wagtail admin access to preview any image. The existing data of the image object itself is not exposed. The vulnerability is not exploitable by ordinary site visitors without admin access.
- CVE-2026-54260Medium
In Wagtail, an open source CMS built on Django, versions prior to 7.0.8, 7.3.3, and 7.4.2 allow an authenticated admin user to trigger expensive rendition processing with crafted filter specs, potentially causing service degradation. The vulnerability is not exploitable by ordinary site visitors without Wagtail admin access.
- CVE-2026-54259Medium
In Wagtail, an open source CMS built on Django, versions prior to 7.0.8, 7.3.3, and 7.4.2, the Documents and Images chooser's chosen endpoint incorrectly listed items for which the user has not been granted choose permission. A user with access to the Wagtail admin could see the filename, name, and URLs of documents and images in those collections.
Original NVD description (English source)
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.