A CMS user with limited access to form pages could delete submissions to form pages they don't have access to by crafting a form submission to delete submissions on a page they do have access to for submissions they don't.
The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin.
Patched versions have been released as Wagtail 7.0.7 and 7.3.2. The new 7.4 LTS feature release also incorporates this fix.
No workaround is available.
Wagtail thanks Vishal Shukla @shukla304 for reporting this issue.
If there are any questions or comments about this advisory:
{
"github_reviewed": true,
"github_reviewed_at": "2026-05-08T20:20:12Z",
"cwe_ids": [
"CWE-280"
],
"severity": "MODERATE",
"nvd_published_at": null
}