CVE-2026-72532

Analyzed Analyzed - Analysis Complete

Improper ACL Bypass in Joomla Core Webservice

Publication date: 2026-08-18

Last updated on: 2026-09-03

Assigner: Joomla! Project

Description

Joomla! Core - [20260806] - Improper ACL checks for category webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper access check allows unauthorized users to create categories via webservices endpoints.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-18

Last Modified

2026-09-03

Generated

2026-09-07

AI Q&A

2026-08-18

EPSS Evaluated

2026-09-06

NVD

CVE-2026-72532

EUVD

EUVD-2026-61027

Affected Vendors & Products

Vendor	Product	Version / Range
joomla	joomla!	From 4.0.0 (inc) to 5.4.8 (exc)
joomla	joomla!	From 6.0.0 (inc) to 6.1.3 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

CVE-2026-72532 is a security flaw in Joomla! CMS versions 4.0.0 to 5.4.7 and 6.0.0 to 6.1.2. It involves improper access control checks for category webservice endpoints, allowing unauthorized users to create categories without proper permissions.

Detection Guidance

Check Joomla version via system files or admin panel. Look for unauthorized category creation in logs. Review webservice endpoint access logs for suspicious POST requests to /api/index.php/v1/categories.

Impact Analysis

This vulnerability could allow attackers to create unauthorized categories in Joomla! components they should not have access to. This may lead to unauthorized content manipulation or further exploitation of the system.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by allowing unauthorized users to create categories via webservice endpoints. Improper ACL checks may lead to unauthorized data access or modifications, violating confidentiality and integrity requirements under these regulations.

Mitigation Strategies

Upgrade Joomla to version 5.4.8 or 6.1.3 immediately. If upgrading is not possible, disable webservice endpoints or restrict access to trusted IPs until patched.

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