{"id":"CVE-2023-28104","aliases":["EUVD-2023-0897","GHSA-67g8-c724-8mp3"],"status":"published","title":"silverstripe/graphql Denial of Service vulnerability","description":"`silverstripe/graphql` serves Silverstripe data as GraphQL representations. In versions 4.2.2 and 4.1.1, an attacker could use a specially crafted graphql query to execute a denial of service attack against a website which has a publicly exposed graphql endpoint. This mostly affects websites with particularly large/complex graphql schemas. Users should upgrade to `silverstripe/graphql` 4.2.3 or 4.1.2 to remedy the vulnerability.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01055,"percentile":0.64698,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-770"],"published":"2023-03-16T15:25:30Z","modified":"2026-10-28T02:30:21Z","fixes":[{"ecosystem":"Packagist","package":"silverstripe/graphql","fixed_in":["4.1.2","4.2.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"silverstripe/graphql","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.1.1"},{"fixed":"4.1.2"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"silverstripe/graphql","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.2.2"},{"fixed":"4.2.3"}]}]},{"source":"osv","ecosystem":"Packagist","package":"silverstripe/graphql","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.1.1"},{"fixed":"4.1.2"}]}],"versions":["4.1.1"]},{"source":"osv","ecosystem":"Packagist","package":"silverstripe/graphql","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.2.2"},{"fixed":"4.2.3"}]}],"versions":["4.2.2"]}],"products":[{"vendor":"silverstripe","product":"graphql"},{"vendor":"silverstripe","product":"silverstripe-graphql"}],"references":[{"url":"https://github.com/silverstripe/silverstripe-graphql/security/advisories/GHSA-67g8-c724-8mp3","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://github.com/silverstripe/silverstripe-graphql/pull/526","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://github.com/silverstripe/silverstripe-graphql/releases/tag/4.1.2","tags":["x_refsource_MISC","x_transferred","Patch","Release Notes","web"]},{"url":"https://github.com/silverstripe/silverstripe-graphql/releases/tag/4.2.3","tags":["x_refsource_MISC","x_transferred","Patch","Release Notes","web"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/silverstripe/graphql/CVE-2023-28104.yaml","tags":["web"]},{"url":"https://www.silverstripe.org/download/security-releases/CVE-2023-28104","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28104","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-67g8-c724-8mp3"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28104.json","tags":["advisory"]},{"url":"https://github.com/silverstripe/silverstripe-graphql","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-28104","title":"silverstripe/graphql Denial of Service vulnerability","description":"`silverstripe/graphql` serves Silverstripe data as GraphQL representations. In versions 4.2.2 and 4.1.1, an attacker could use a specially crafted graphql query to execute a denial of service attack against a website which has a publicly exposed graphql endpoint. This mostly affects websites with particularly large/complex graphql schemas. Users should upgrade to `silverstripe/graphql` 4.2.3 or 4.1.2 to remedy the vulnerability.","status":"published","published":"2023-03-16T15:25:30.551Z","modified":"2025-02-25T14:55:43.73Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:35:32.376766Z"}],"euvd":[{"id":"EUVD-2023-0897","description":"`silverstripe/graphql` serves Silverstripe data as GraphQL representations. In versions 4.2.2 and 4.1.1, an attacker could use a specially crafted graphql query to execute a denial of service attack against a website which has a publicly exposed graphql endpoint. This mostly affects websites with particularly large/complex graphql schemas. Users should upgrade to `silverstripe/graphql` 4.2.3 or 4.1.2 to remedy the vulnerability.","status":"published","published":"2023-03-16T15:25:30Z","modified":"2025-02-25T14:55:43Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T20:53:24.646946Z"}],"ghsa":[{"id":"GHSA-67g8-c724-8mp3","title":"DDOS attack on graphql endpoints","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.\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.","status":"published","published":"2023-03-16T17:22:17Z","modified":"2023-03-16T21:38:44Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:36:48.041653Z"}],"nvd":[{"id":"CVE-2023-28104","description":"`silverstripe/graphql` serves Silverstripe data as GraphQL representations. In versions 4.2.2 and 4.1.1, an attacker could use a specially crafted graphql query to execute a denial of service attack against a website which has a publicly exposed graphql endpoint. This mostly affects websites with particularly large/complex graphql schemas. Users should upgrade to `silverstripe/graphql` 4.2.3 or 4.1.2 to remedy the vulnerability.","status":"published","published":"2023-03-16T16:15:12.75Z","modified":"2026-06-17T05:46:52.817Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:07:49.031498Z"}],"osv":[{"id":"CVE-2023-28104","title":"silverstripe/graphql Denial of Service vulnerability","description":"`silverstripe/graphql` serves Silverstripe data as GraphQL representations. In versions 4.2.2 and 4.1.1, an attacker could use a specially crafted graphql query to execute a denial of service attack against a website which has a publicly exposed graphql endpoint. This mostly affects websites with particularly large/complex graphql schemas. Users should upgrade to `silverstripe/graphql` 4.2.3 or 4.1.2 to remedy the vulnerability.","status":"published","published":"2023-03-16T15:25:30.551Z","modified":"2026-10-28T02:30:21.631736572Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:44:31.135751Z"},{"id":"GHSA-67g8-c724-8mp3","title":"DDOS attack on graphql endpoints","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.\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.","status":"published","published":"2023-03-16T17:22:17Z","modified":"2026-09-10T03:49:52.72215704Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:46:39.266402Z"}]}}