CVE-2023-28104

Description

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. Upgrade to `silverstripe/graphql` 4.2.3 or 4.1.2 or above to remedy the vulnerability.

How to fix CVE-2023-28104

To remediate CVE-2023-28104, upgrade the affected package to a fixed version below.

• —upgrade to 4.1.2 or later

Is CVE-2023-28104 being exploited?

Low — EPSS is 1.1%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• >= 4.1.1, < 4.1.2

CVSS scores

References (8)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2023-28104
• PATCHgithub.com/silverstripe/silverstripe-graphql
• WEBgithub.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/graphql/CVE-2023-28104.yaml
• WEBgithub.com/silverstripe/silverstripe-graphql/pull/526