CVE-2023-21997Network attack vector

Authenticated disclosure of delegated-user data

Published Apr 18, 2023 · Updated Sep 13, 2024

Information disclosure in Oracle User Management 12.2.3 through 12.2.12 allows remote authenticated users to read restricted data via HTTP. Oracle identifies Proxy User Delegation as the affected component but has not published the erroneous authorization operation or request parameters. A low-privileged account and network access to the HTTP interface are required, and the consequence is limited to unauthorized reading of a subset of accessible data.

CVSS severity4.3
Medium
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Oracle User Management 12.2.3 through 12.2.12 allows remote authenticated users to read restricted data via HTTP. Oracle identifies Proxy User Delegation as the affected component but has not published the erroneous authorization operation or request parameters. A low-privileged account and network access to the HTTP interface are required, and the consequence is limited to unauthorized reading of a subset of accessible data.

The record

CVE
CVE-2023-21997
Published
Apr 18, 2023
Updated
Sep 13, 2024
Vendor
Oracle Corporation
Product
Oracle User Management
Classifications
T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 13, 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=12.2.3-12.2.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oracle Corporation · Oracle User Managementversion=12.2.3-12.2.12

Published CVSS scores

4.3Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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 exploitUnconfirmed

Weakness, pattern, technique

T1213Data from Information Repositories

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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