CVE-2023-4560Public exploitNetwork attack vector

Authenticated user-data disclosure via unchecked edit access

Published Aug 28, 2023 · Updated Oct 2, 2024

Improper authorization in Omeka S before 4.0.4 allows remote authenticated users to view another user's settings and API key identity. UserController::editAction retrieved and rendered the requested user before checking whether the requester was allowed to update that account. Any low-privilege account able to reach the admin user edit route can disclose settings and the identity half of another user's API keys, but cannot change the account through this flaw.

CVSS severity6.5
Medium
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper authorization in Omeka S before 4.0.4 allows remote authenticated users to view another user's settings and API key identity. UserController::editAction retrieved and rendered the requested user before checking whether the requester was allowed to update that account. Any low-privilege account able to reach the admin user edit route can disclose settings and the identity half of another user's API keys, but cannot change the account through this flaw.

The record

CVE
CVE-2023-4560
Published
Aug 28, 2023
Updated
Oct 2, 2024
Vendor
Omeka
Product
Omeka S
Classifications
CWE-612, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 2, 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=0 <4.0.4
  2. Affected versionversion=unspecified <4.0.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Omeka · Omeka Sversion=0 <4.0.4; version=unspecified <4.0.4

Published CVSS scores

6.5huntr.devCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-612Improper Authorization of Index Containing Sensitive Information
T1190Exploit Public-Facing Application

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo