CVE-2023-50928Network attack vector

Authenticated account claim via unchecked event validation

Published Dec 22, 2023 · Updated Aug 2, 2024

Improper access control in Sandbox Accounts for Events 1.0.0 allows remote authenticated users to claim empty AWS accounts via its account API. The account API accepts nonexistent event IDs together with attacker-defined budget and duration instead of verifying that the event exists and authorizes the lease. Exploitation is limited to cleaned accounts and can expose temporary account access and exceed intended budgets, while existing data and infrastructure remain inaccessible.

CVSS severity7.1
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Sandbox Accounts for Events 1.0.0 allows remote authenticated users to claim empty AWS accounts via its account API. The account API accepts nonexistent event IDs together with attacker-defined budget and duration instead of verifying that the event exists and authorizes the lease. Exploitation is limited to cleaned accounts and can expose temporary account access and exceed intended budgets, while existing data and infrastructure remain inaccessible.

The record

CVE
CVE-2023-50928
Published
Dec 22, 2023
Updated
Aug 2, 2024
Vendor
Amazon Web Services
Product
Sandbox Accounts for Events
Classifications
CWE-284, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=< 1.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Amazon Web Services · Sandbox Accounts for Eventsversion=< 1.1.0

Published CVSS scores

7.1GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1098Account Manipulation

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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