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High

DDOS attack on graphql endpoints

  • Disclosed: 16.03.2023
  • Updated: 11.10.2026 10:22

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.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Composer package silverstripe/graphql >= 4.1.1, < 4.1.2, >= 4.2.2, < 4.2.3 4.1.2, 4.2.3

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-770
Platform
Composer
Package
silverstripe/graphql
Disclosed
16.03.2023
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-67g8-c724-8mp3 - CC BY 4.0

Vulnerability history: silverstripe/graphql

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
8
First → latest
06.2021 05.2024
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • High 4
  • Medium 4

Disclosures per year

  1. silverstripe/graphql Cross-Site Request Forgery vulnerability
    High · 7.3 ghsa-wjg9-v8cf-f5q2 >= 2.0.0, < 2.0.3 2.0.3
  2. View permissions are bypassed for paginated lists of ORM data
    Medium · 5.3 CVE-2023-44401 >= 4.0.0, < 4.3.7, >= 5.0.0, < 5.1.3 4.3.7, 5.1.3
  3. Silverstripe GraphQL has DDOS Vulnerability due to lack of protection against recursive queries
    High · 7.5 CVE-2023-40180 >= 3.0.0, < 3.8.2, >= 4.0.0, < 4.1.3, >= 4.2.0, < 4.2.5, >= 4.3.0, < 4.3.4, >= 5.0.0, < 5.0.3 3.8.2, 4.1.3, 4.2.5, 4.3.4, 5.0.3
  4. DDOS attack on graphql endpoints this entry
    High · 7.5 CVE-2023-28104 >= 4.1.1, < 4.1.2, >= 4.2.2, < 4.2.3 4.1.2, 4.2.3
  5. Silverstripe has Incorrect Default Permissions
    Medium · 5.3 CVE-2020-6165 >= 3.2.0, < 3.2.4 3.2.4
  6. Silverstripe CSRF Protection Bypass via GraphQL
    High · 8.8 CVE-2019-12437 >= 2.0.0, < 2.0.5, >= 3.1.0, < 3.1.2 2.0.5, 3.1.2
  7. SilverStripe GraphQL Server permission checker not inherited by query subclass.
    Medium · 4.3 CVE-2021-28661 >= 3.0.0, < 3.5.2 3.5.2
  8. Authentication bypass in SilverStripe GraphQL
    Medium · 6.5 CVE-2020-26136 >= 3.0.0, < 3.5.0, >= 4.0.0-alpha1, < 4.0.0-alpha2 3.5.0, 4.0.0-alpha2

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