CVE-2026-84797 Craft CMS 5.0.0-RC1 before 5.10.11 Authorization Bypass via actionDuplicate
Authenticated users can bypass authorization checks to delete or access other users' provisional drafts in Craft CMS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-84797?
CVE-2026-84797 is a medium-severity missing authorization vulnerability in craftcms cms, published on 2 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Craft CMS versions before 5.10.11 contain an authorization bypass vulnerability in ElementsController::actionDuplicate() that allows authenticated users with createEntries permission to delete peer provisional drafts. Attackers can exploit the deleteProvisionalDraft parameter to delete another user's unsaved draft without proper authorization checks, gaining access to the victim's in-progress content.
Weakness: CWE-862
Which versions are affected by CVE-2026-84797?
How do I fix CVE-2026-84797?
No fix has been published for CVE-2026-84797 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-84797 being exploited?
There is no known exploitation of CVE-2026-84797 in the wild and no public exploit code.
Sources
Also known as GHSA-2f55-h4xr-92p2, GHSA-r34q-jr62-3v7g.