CVE-2023-21975Network attack vector

Authenticated takeover requiring victim interaction

Published Jul 18, 2023 · Updated Sep 13, 2024

Oracle Application Express Customers Plugin 18.2 through 22.2 allows remote authenticated users to take over the plugin via HTTP. Oracle identifies the User Account component but has not published the flawed operation or the input that triggers it. Exploitation requires low-privileged access and interaction by another person, and a successful attack can affect confidentiality, integrity, and availability beyond the plugin's security scope.

CVSS severity9.0
Critical
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Oracle Application Express Customers Plugin 18.2 through 22.2 allows remote authenticated users to take over the plugin via HTTP. Oracle identifies the User Account component but has not published the flawed operation or the input that triggers it. Exploitation requires low-privileged access and interaction by another person, and a successful attack can affect confidentiality, integrity, and availability beyond the plugin's security scope.

The record

CVE
CVE-2023-21975
Published
Jul 18, 2023
Updated
Sep 13, 2024
Vendor
Oracle Corporation
Product
Oracle Application Express
Classifications
Unavailable
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 13, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Application Express Customers Plugin: 18.2 <=22.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oracle Corporation · Oracle Application Expressversion=Application Express Customers Plugin: 18.2 <=22.2

Published CVSS scores

9.0Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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