How severe is CVE-2020-14900?

CVE-2020-14900 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-2020-14900 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-14900?

CVE-2020-14900 affects Oracle Application Express. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-14900?

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

When was CVE-2020-14900 published?

CVE-2020-14900 was published on 2020-10-21 and last updated on 2026-06-17.

CVE-2020-14900

CVE-2020-14900 is a medium-severity vulnerability in Oracle Application Express 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)
CVSS v2: 4.9
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Oracle Application Express
Published: 2020-10-21
Last modified: 2026-06-17

Description

Vulnerability in the Oracle Application Express Group Calendar component of Oracle Database Server. The supported version that is affected is Prior to 20.2. Easily exploitable vulnerability allows low privileged attacker having Valid User Account privilege with network access via HTTP to compromise Oracle Application Express Group Calendar. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Application Express Group Calendar, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Application Express Group Calendar accessible data as well as unauthorized read access to a subset of Oracle Application Express Group Calendar 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-2020-14900?: Vulnerability in the Oracle Application Express Group Calendar component of Oracle Database Server. The supported version that is affected is Prior to 20.2. Easily exploitable vulnerability allows low privileged attacker having Valid User Account privilege with network access via HTTP to compromise Oracle Application Express Group Calendar. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Application Express Group Calendar, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Application Express Group Calendar accessible data as well as unauthorized read access to a subset of Oracle Application Express Group Calendar 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-2020-14900?: CVE-2020-14900 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-2020-14900 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-14900?: CVE-2020-14900 affects Oracle Application Express. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-14900?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-14900 published?: CVE-2020-14900 was published on 2020-10-21 and last updated on 2026-06-17.

References

https://www.oracle.com/security-alerts/cpuoct2020.html

Affected products (1)

cpe:2.3:a:oracle:application_express:*:*:*:*:*:*:*:*

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