CVE-2026-33887 Statamic allows unauthorized content access through missing authorization in its revision controllers

Medium 5.4 Published Updated

Authenticated users can view and create entry revisions for any collection, bypassing permission checks and exposing sensitive content data.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-33887?

CVE-2026-33887 is a medium-severity missing authorization vulnerability in statamic cms, published on 27 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Statamic is a Laravel and Git powered content management system (CMS). Prior to versions 5.73.16 and 6.7.2, authenticated Control Panel users could view entry revisions for any collection with revisions enabled, regardless of whether they had the required collection permissions. This bypasses the authorization checks that the main entry controllers enforce, exposing entry field values and blueprint data. Users could also create entry revisions without edit permission, though this only snapshots the existing content state and does not affect published content. This has been fixed in 5.73.16 and 6.7.2.

Weakness: CWE-862

Which versions are affected by CVE-2026-33887?

4 open source packages ship an affected version, including statamic/cms. It affects 1 product.

PackageAffectedFixed in
statamic/cms PackagistAll versions5.73.16
statamic/cms PackagistAll versions5.73.16
statamic/cms PackagistFrom 6.0.0-alpha.16.7.2
statamic/cms PackagistFrom 6.0.0-alpha.16.7.2

Products include Statamic Statamic.

How do I fix CVE-2026-33887?

Upgrade statamic/cms to a fixed version for your release line: 5.73.16 or 6.7.2.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-33887 being exploited?

There is no known exploitation of CVE-2026-33887 in the wild and no public exploit code.

Sources

Also known as GHSA-4hp7-3wxg-cv9q.

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