CVE-2023-28104 - DDOS attack on graphql endpoints

Severity:

High (?)

Identifier:

CVE-2023-28104

Versions Affected:

4.2.2, 4.1.1

Versions Fixed:

4.2.3, 4.1.2

Release Date:

2023-03-16

An attacker could use a specially crafted graphql query to execute a Distributed Denial of Service attack (DDOS attack) against a website. This mostly affects websites with publicly exposed and particularly large/complex graphql schemas.

If your Silverstripe CMS project does not expose a public facing graphql schema, a user account is required to trigger the DDOS attack. If your site is hosted behind a content delivery network (CDN), such as Imperva or CloudFlare, this will likely further mitigate the risk.

Base CVSS: 7.5

Reported by: Guy Sartorelli from Silverstripe