Critical severity · published Sep 3, 2026
CVE-2026-78069
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
9.5
CVSS
0.4%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JE
J2Store extension for Joomla · j2commerce.com
1.0.0-3.3.21; 4.0.0-4.0.21; 4.1.0-4.1.6 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-78069
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-78069
www.j2commerce.com
https://www.j2commerce.com/
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