{"id":"GHSA-67g8-c724-8mp3","summary":"DDOS attack on graphql endpoints","details":"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.\n\nIf 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.\n\nUpgrade to `silverstripe/graphql` 4.2.3 or 4.1.2 or above to remedy the vulnerability.","aliases":["CVE-2023-28104"],"modified":"2026-09-10T03:49:52.722157040Z","published":"2023-03-16T17:22:17Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2023-03-16T17:22:17Z","nvd_published_at":"2023-03-16T16:15:00Z","cwe_ids":["CWE-770"],"severity":"HIGH"},"references":[{"type":"WEB","url":"https://github.com/silverstripe/silverstripe-graphql/security/advisories/GHSA-67g8-c724-8mp3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28104"},{"type":"WEB","url":"https://github.com/silverstripe/silverstripe-graphql/pull/526"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/graphql/CVE-2023-28104.yaml"},{"type":"PACKAGE","url":"https://github.com/silverstripe/silverstripe-graphql"},{"type":"WEB","url":"https://github.com/silverstripe/silverstripe-graphql/releases/tag/4.1.2"},{"type":"WEB","url":"https://github.com/silverstripe/silverstripe-graphql/releases/tag/4.2.3"},{"type":"WEB","url":"https://www.silverstripe.org/download/security-releases/CVE-2023-28104"}],"affected":[{"package":{"name":"silverstripe/graphql","ecosystem":"Packagist","purl":"pkg:composer/silverstripe/graphql"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.1.1"},{"fixed":"4.1.2"}]}],"versions":["4.1.1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/03/GHSA-67g8-c724-8mp3/GHSA-67g8-c724-8mp3.json"}},{"package":{"name":"silverstripe/graphql","ecosystem":"Packagist","purl":"pkg:composer/silverstripe/graphql"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.2.2"},{"fixed":"4.2.3"}]}],"versions":["4.2.2"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/03/GHSA-67g8-c724-8mp3/GHSA-67g8-c724-8mp3.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}