CVE-2026-90913 - Vulnerability Details - OpenCVE

Joomla! Core - [20260903] - Core - Improper ACL checks for access level webservice endpoints in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - An improper access check allows unauthorized users to perform mutation actions in access level endpoints.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://developer.joomla.org/security-centre/1083-20260903-core-improper-acl-checks-for-user-level-webservice-endpoints.html
https://www.joomla.org/

History

Tue, 29 Sep 2026 16:45:00 +0000

Type	Values Removed	Values Added
Description		Joomla! Core - [20260903] - Core - Improper ACL checks for access level webservice endpoints in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3 - An improper access check allows unauthorized users to perform mutation actions in access level endpoints.
Title		Joomla! Core - [20260903] - Core - Improper ACL checks for access level webservice endpoints in Joomla 4.0.0-5.4.8, 6.0.0-6.1.3
Weaknesses		CWE-284
References		https://developer.joomla.org/security-centre/1083-20260903-core-improper-acl-checks-for-user-level-webservice-endpoints.html https://www.joomla.org/
Metrics		cvssV4_0 `{'score': 7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: Joomla

Published: 2026-09-29T16:36:15.505Z

Updated: 2026-09-29T16:36:15.505Z

Reserved: 2026-09-14T11:03:59.812Z

Link: CVE-2026-90913

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-09-29T17:17:13.263

Modified: 2026-09-29T17:17:13.263

Link: CVE-2026-90913

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-284

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