CVE-2023-40180Network attack vector

Website interruption via unrestricted recursive queries

Published Oct 16, 2023 · Updated Sep 16, 2024

Uncontrolled resource consumption in affected Silverstripe GraphQL releases allows remote attackers to interrupt websites via recursive queries. The GraphQL request path parsed and executed documents without depth, node-count, or complexity limits, so nested selections consumed excessive server resources. A public schema permits unauthenticated network access; a nonpublic schema requires a user account, and the bounded impact is loss of website availability.

CVSS severity7.5
High
EPSS probability0.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled resource consumption in affected Silverstripe GraphQL releases allows remote attackers to interrupt websites via recursive queries. The GraphQL request path parsed and executed documents without depth, node-count, or complexity limits, so nested selections consumed excessive server resources. A public schema permits unauthenticated network access; a nonpublic schema requires a user account, and the bounded impact is loss of website availability.

The record

CVE
CVE-2023-40180
Published
Oct 16, 2023
Updated
Sep 16, 2024
Vendor
Silverstripe
Product
Silverstripe GraphQL
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 3.0.0, < 3.8.2
  2. Affected versionversion=>= 4.0.0, < 4.1.3
  3. Affected versionversion=>= 4.2.0, < 4.2.5
  4. Affected versionversion=>= 4.3.0, < 4.3.4
  5. Affected versionversion=>= 5.0.0, < 5.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Silverstripe · Silverstripe GraphQLversion=>= 3.0.0, < 3.8.2; version=>= 4.0.0, < 4.1.3; version=>= 4.2.0, < 4.2.5; version=>= 4.3.0, < 4.3.4; version=>= 5.0.0, < 5.0.3

Published CVSS scores

7.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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