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CRITICAL

Joomla Extension - j2commerce.com - Missing authorization on Apps controller delegation chain in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6

Published Sep 3, 2026

Description

Joomla Extension - j2commerce.com - Missing authorization on Apps controller delegation chain in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6 - `J2StoreControllerApps`'s `appTask` delegation path instantiates app-plugin controllers with no ACL check anywhere in the code. It currently returns 403 only as a side effect of `fof.xml`'s wildcard-deny resolving under the singularised ACL key `app`, which has no explicit allow rule — not because of any deliberate check. Behind that path, `applocalizationdata::getInstallerTool()` used a caller-influenced table name with no allow-list, both to select a `#__j2store_*` table for truncation and to build a path to SQL files it then executes — a path-traversal-capable file read/execute.

Affected products

Remediation

No remediation recorded yet.

References (2)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner Joomla
Published Sep 3, 2026
Updated Sep 3, 2026
Reserved Aug 22, 2026
CISA Vulnrichment
Updated Sep 3, 2026
NVD
Status Deferred
Modified Sep 3, 2026
Red Hat
Severity n/a
Public date n/a
ENISA EUVD
Assigner Joomla
Published Sep 3, 2026
Updated Sep 3, 2026
Exploited since n/a
EUVD-2026-70445