CVE-2026-78064

Summary

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.

Affected Software

VendorProductVersion RangeStatus
j2commerce.comJ2Store extension for Joomla1.0.0-3.3.21affected
j2commerce.comJ2Store extension for Joomla4.0.0-4.0.21affected
j2commerce.comJ2Store extension for Joomla4.1.0-4.1.6affected

Weaknesses

  • CWE-639: CWE-639 (Authorization Bypass Through User-Controlled Key)

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References