CVE-2026-54260
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk12th percentile - higher than 12% of all known CVEs
Summary
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.
Risk Assessment
The risk is a potential Denial of Service (DoS) attack by an admin user, which could slow down or make the CMS unavailable to other users.
Recommendation
Immediately upgrade Wagtail to version 7.0.8, 7.3.3, or 7.4.2, depending on your release branch.
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-2026-54263High
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.
- 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-2026-54259Medium
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, an authenticated admin user can trigger expensive rendition processing with purposefully crafted filter specs resulting in potentially service degradation. 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.