CVE-2026-78069 Missing authorization in J2Store extension for Joomla
Attackers can bypass authorization in J2Store to execute arbitrary SQL and code via path traversal in the Apps controller.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-78069?
CVE-2026-78069 is a critical missing authorization vulnerability in j2commerce.com J2Store extension for Joomla, published on 3 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-78069?
How do I fix CVE-2026-78069?
No fix has been published for CVE-2026-78069 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-78069 being exploited?
There is no known exploitation of CVE-2026-78069 in the wild and no public exploit code.
Sources
Also known as GHSA-7345-4p68-cx7g.