CVE-2021-28661: Silverstripe

Medium severity, CVSS 4.3. EPSS: 0.8% chance of exploitation in the next 30 days.

Default SilverStripe GraphQL Server (aka silverstripe/graphql) 3.x through 3.4.1 permission checker not inherited by query subclass.

Affected products

• Silverstripe Silverstripe: from 3.0.0, up to and including 3.4.1

Published 2021-10-07. Last modified 2026-06-17.