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...

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).

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.69%

48.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Oracle	Application Express	< 20.2

References

https://www.oracle.com/security-alerts/cpuoct2020.htmlVendor Advisory
https://www.oracle.com/security-alerts/cpuoct2020.htmlVendor Advisory

Timeline

Published: Oct 21, 2020
Last Modified: Jun 17, 2026
Status: Modified

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 score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.

How do I fix CVE-2020-14900?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.