CVE-2023-21888Network attack vector

Authenticated data modification via undisclosed WebUI flaw

Published Jan 17, 2023 · Updated Sep 17, 2024

Unspecified WebUI vulnerability in affected Oracle Primavera Gateway releases allows remote authenticated users to read or modify application data. Oracle has not disclosed the affected WebUI locus or the operation it performs incorrectly on untrusted input. Exploitation requires HTTP access, low privileges, and interaction by another user; it can expose some data and update, insert, or delete accessible data.

CVSS severity5.4
Medium
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

Unspecified WebUI vulnerability in affected Oracle Primavera Gateway releases allows remote authenticated users to read or modify application data. Oracle has not disclosed the affected WebUI locus or the operation it performs incorrectly on untrusted input. Exploitation requires HTTP access, low privileges, and interaction by another user; it can expose some data and update, insert, or delete accessible data.

The record

CVE
CVE-2023-21888
Published
Jan 17, 2023
Updated
Sep 17, 2024
Vendor
Oracle Corporation
Product
Primavera Gateway
Classifications
T1190
Attack vector
network
Privileges
authenticated

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

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=18.8.0-18.8.15
  2. Affected versionversion=19.12.0-19.12.15
  3. Affected versionversion=20.12.0-20.12.10
  4. Affected versionversion=21.12.0-21.12.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oracle Corporation · Primavera Gatewayversion=18.8.0-18.8.15; version=19.12.0-19.12.15; version=20.12.0-20.12.10; version=21.12.0-21.12.8

Published CVSS scores

5.4Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1190Exploit Public-Facing Application

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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