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TI-2026-54302 Aliases CVE-2026-78064GHSA-jjf7-8pp5-x8vw

Authorization bypass in j2commerce.com J2Store extension for Joomla

Priority MEDIUM 44CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · High · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00406 35th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
j2commerce.comJ2Store extension for Joomla1.0.0-3.3.21; 4.0.0-4.0.21; 4.1.0-4.1.6—No fix listedCNA
  • J2Store extension for Joomla Vendorj2commerce.com Affected 1.0.0-3.3.21; 4.0.0-4.0.21; 4.1.0-4.1.6 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-78064
  2. 2026-10-03 Alias added: GHSA-jjf7-8pp5-x8vw

References

Other 1

  • TI-2026-56676 Joomla Extension - j2commerce.com - Any order can be marked Failed by anyone in J2Store… CVSS 4.0HIGH 8.7
  • TI-2026-56276 Path traversal in j2commerce.com J2Store extension for Joomla CVSS 4.0HIGH 8.7
  • TI-2026-56275 SQL injection in j2commerce.com J2Store extension for Joomla CVSS 4.0HIGH 8.7
  • TI-2026-54274 Joomla Extension - j2commerce.com - Unauthenticated PayPal callback forgery leading to… CVSS 4.0HIGH 8.7
  • TI-2026-47655 Authorization bypass in j2commerce.com J2Store extension for Joomla CVSS 4.0HIGH 8.7
  • TI-2026-54304 Missing authorization in j2commerce.com J2Store extension for Joomla CVSS 4.0CRITICAL 9.5
See all 16 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences