CVE-2023-21975

CVE-2023-21975 is a critical-severity vulnerability in Oracle Application Express with a CVSS 3.x base score of 9.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Vulnerability in the Application Express Customers Plugin product of Oracle Application Express (component: User Account). Supported versions that are affected are Application Express Customers Plugin: 18.2-22.2. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Application Express Customers Plugin. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Application Express Customers Plugin, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Application Express Customers Plugin. CVSS 3.1 Base Score 9.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H).

Frequently asked questions

What is CVE-2023-21975?
Vulnerability in the Application Express Customers Plugin product of Oracle Application Express (component: User Account). Supported versions that are affected are Application Express Customers Plugin: 18.2-22.2. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Application Express Customers Plugin. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Application Express Customers Plugin, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Application Express Customers Plugin. CVSS 3.1 Base Score 9.0 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H).
How severe is CVE-2023-21975?
CVE-2023-21975 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-21975 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-21975?
CVE-2023-21975 affects Oracle Application Express. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-21975?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-21975 published?
CVE-2023-21975 was published on 2023-07-18 and last updated on 2026-06-17.

References

Affected products (1)

More vulnerabilities in Oracle Application Express

All CVEs affecting Oracle Application Express →