CVE-2026-78081: j2commerce.com j2store Extension For Joomla

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

Joomla Extension - j2commerce.com - Missing CSRF protection on cart, checkout and myprofile controllers in J2Store 1.0.0-3.3.2, 4.0.0-4.0.22, 4.1.0-4.1.7 - A forged request riding a victim's active checkout session could silently overwrite the billing or shipping address before order confirmation — the most consequential sub-case, since it opens the door to redirecting a paid order's goods to an attacker-controlled address — or tamper with a saved profile address via `saveAddress()`. As before, each forged request executes with only the victim's own session privileges, so there is no cross-account data access.

Affected products

• j2commerce.com j2store Extension For Joomla: version 1.0.0-3.3.22 only; version 4.0.0-4.0.22 only; version 4.1.0-4.1.7 only

Published 2026-09-15. Last modified 2026-09-16.