CVE-2023-23751Network attack vector

Action-log disclosure via missing ACL check

Published Feb 1, 2023 · Updated Mar 29, 2025

Incorrect authorization in Joomla! CMS 4.0.0 through 4.2.6 allows remote authenticated users to read user action logs. The com_actionlogs administrator component omits an ACL check before returning its log view to users who lack super-administrator authorization. Any lower-privileged back-end account that can reach the component can view recorded administrative activity, while the published impact is limited to disclosure.

CVSS severity4.3
Medium
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Joomla! CMS 4.0.0 through 4.2.6 allows remote authenticated users to read user action logs. The com_actionlogs administrator component omits an ACL check before returning its log view to users who lack super-administrator authorization. Any lower-privileged back-end account that can reach the component can view recorded administrative activity, while the published impact is limited to disclosure.

The record

CVE
CVE-2023-23751
Published
Feb 1, 2023
Updated
Mar 29, 2025
Vendor
Joomla! Project
Product
Joomla! CMS
Classifications
CWE-863, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 1, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 29, 2025Record 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=4.0.0-4.2.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Joomla! Project · Joomla! CMSversion=4.0.0-4.2.6

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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

CWE-863Incorrect Authorization
T1190Exploit Public-Facing Application

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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