High severity · published Sep 3, 2026
CVE-2026-78064
Joomla Extension - j2commerce.com - Anonymous cart-record tampering via inherited FOF `save` task in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6
8.8
CVSS
0.4%
EPSS
No
On KEV
Description
Joomla Extension - j2commerce.com - Anonymous cart-record tampering via inherited FOF `save` task in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6 - `fof.xml` grants the `carts` view's tasks a wildcard `true` ACL, and FOF only enforces CSRF tokens on back-end HTML requests, not on front-end `format=raw` requests. `J2StoreControllerCarts` already scoped `remove()` to the caller's own session, but never overrode the generic FOF `save` task, so it remained reachable to insert new cart rows with an attacker-chosen `user_id`/`session_id`, or overwrite an existing row by id.
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-2026-78064
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-78064
www.j2commerce.com
https://www.j2commerce.com/
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