CVE-2023-21862Network attack vector

Data access and modification via external entities

Published Jan 17, 2023 · Updated Sep 17, 2024

XXE in Oracle Web Services Manager 12.2.1.4.0 allows remote attackers to read or modify accessible data through crafted HTTP input. The XML Security component processes attacker-controlled XML without adequately restricting external entity references; Oracle has not disclosed a finer code-level locus. Successful exploitation requires interaction by another person and can expose, create, delete, or alter all data accessible to the service, without a reported service interruption.

CVSS severity8.1
High
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XXE in Oracle Web Services Manager 12.2.1.4.0 allows remote attackers to read or modify accessible data through crafted HTTP input. The XML Security component processes attacker-controlled XML without adequately restricting external entity references; Oracle has not disclosed a finer code-level locus. Successful exploitation requires interaction by another person and can expose, create, delete, or alter all data accessible to the service, without a reported service interruption.

The record

CVE
CVE-2023-21862
Published
Jan 17, 2023
Updated
Sep 17, 2024
Vendor
Oracle
Product
Oracle Web Services Manager
Classifications
CWE-611, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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?

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  1. Affected versionversion=12.2.1.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle · Oracle Web Services Managerversion=12.2.1.4.0

Published CVSS scores

8.1OracleCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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