CVE-2026-84798 Craft CMS before 5.10.11 Authorization Bypass via actionDeleteForSite

High 7.1 Published Updated

Authenticated users lacking delete permissions can permanently delete site entries due to missing authorization checks 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-2026-84798?

CVE-2026-84798 is a high-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 >= 5.0.0-RC1 and < 5.10.11 fail to perform an independent authorization check in ElementsController::actionDeleteForSite(). The method loads an element with checkForProvisionalDraft enabled and runs the deletion authorization check against the user's own provisional draft (which only verifies draft ownership), then propagates the deletion to the canonical element without re-checking permissions. As a result, an authenticated user who has viewEntries, viewPeerEntries, saveEntries, savePeerEntries, and editSite permissions but lacks the deleteEntriesForSite permission can hard-delete a canonical entry's site record (and, for single-site entries, the full element and content), which is irrecoverable via Craft's recycle bin.

Weakness: CWE-862

Which versions are affected by CVE-2026-84798?

How do I fix CVE-2026-84798?

No fix has been published for CVE-2026-84798 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-2026-84798 being exploited?

There is no known exploitation of CVE-2026-84798 in the wild and no public exploit code.

Sources

Also known as GHSA-423p-fc4f-r86r, GHSA-5fh8-74j8-mvcp.

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