How severe is CVE-2023-21888?

CVE-2023-21888 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-21888 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-21888?

CVE-2023-21888 affects Oracle Primavera Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-21888?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-21888 published?

CVE-2023-21888 was published on 2023-01-18 and last updated on 2026-06-17.

CVE-2023-21888

CVE-2023-21888 is a medium-severity vulnerability in Oracle Primavera Gateway with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Oracle Primavera Gateway
Published: 2023-01-18
Last modified: 2026-06-17

Description

Vulnerability in the Primavera Gateway product of Oracle Construction and Engineering (component: WebUI). Supported versions that are affected are 18.8.0-18.8.15, 19.12.0-19.12.15, 20.12.0-20.12.10 and 21.12.0-21.12.8. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Primavera Gateway. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Primavera Gateway, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Primavera Gateway accessible data as well as unauthorized read access to a subset of Primavera Gateway accessible data. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N).

Frequently asked questions

What is CVE-2023-21888?: Vulnerability in the Primavera Gateway product of Oracle Construction and Engineering (component: WebUI). Supported versions that are affected are 18.8.0-18.8.15, 19.12.0-19.12.15, 20.12.0-20.12.10 and 21.12.0-21.12.8. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Primavera Gateway. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Primavera Gateway, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Primavera Gateway accessible data as well as unauthorized read access to a subset of Primavera Gateway accessible data. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N).
How severe is CVE-2023-21888?: CVE-2023-21888 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-21888 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-21888?: CVE-2023-21888 affects Oracle Primavera Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-21888?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-21888 published?: CVE-2023-21888 was published on 2023-01-18 and last updated on 2026-06-17.

References

https://www.oracle.com/security-alerts/cpujan2023.html

Affected products (1)

cpe:2.3:a:oracle:primavera_gateway:*:*:*:*:*:*:*:*

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