LowGHSA-7mqq-4v55-88ghCVE-2026-54244

Statamic CMS's incorrect authorization lets view-only users submit Live Preview content reserved for editors

Published 26 Jun 2026 · Updated 10 Sept 2026

Affected packages

statamic/cmsComposer

Affected: <5.74.0
Fixed in: 5.74.0

Update to the fixed version for your release line, for example:composer require statamic/cms:^5.74.0

statamic/cmsComposer

Affected: >=6.0.0 <6.20.3
Fixed in: 6.20.3

Update to the fixed version for your release line, for example:composer require statamic/cms:^6.20.3

Details

Impact

The Live Preview endpoint for existing entries and terms only checked view authorization, but it accepts and renders caller-supplied field values. A Control Panel user with view but not edit permission could therefore submit content they were not authorized to author and generate a shareable Live Preview URL rendering it.

Patches

This has been fixed in 5.74.0 and 6.20.3.

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.