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OpenAdvisories
High · 8.7 CVE-2026-82189 EUVD-2026-79286GHSA-739c-vch3-5f25

Joomla Extension - j2commerce.com - Any order can be marked Failed by anyone in J2Store 1.0.0-3.3.2, 4.0.0-4.0.22, 4.1.0-4.1.7

Published Sep 15, 2026 · Updated Sep 16, 2026 · Assigned by Joomla

Description

Joomla Extension - j2commerce.com - Any order can be marked Failed by anyone in J2Store 1.0.0-3.3.2, 4.0.0-4.0.22, 4.1.0-4.1.7 - Unauthenticated denial-of-service against the order pipeline: mass-failing pending orders to disrupt revenue and force manual reprocessing, or flipping already-fulfilled orders back to `FAILED` to cause operational confusion (unwarranted refunds/cancellations, customer-support load). Unlike the earlier confirmation-fraud issue, this required no correct payment amount or transaction data at all.

Affected products

VendorProductAffectedFixed
j2commerce.com J2Store extension for Joomla 1.0.0-3.3.22, 4.0.0-4.0.22, 4.1.0-4.1.7 —

References