---
id: CVE-2026-82189
title: >-
  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…
summary: >-
  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…
severity: high
cvss: 8.7
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-472
  - CWE-602
vendor: j2commerce.com
product: J2Store extension for Joomla
affected:
  - j2store_extension_for_joomla 1.0.0-3.3.22
  - j2store_extension_for_joomla 4.0.0-4.0.22
  - j2store_extension_for_joomla 4.1.0-4.1.7
published: '2026-09-15'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T19:28:06.713'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82189'
references:
  - url: 'https://www.j2commerce.com/'
    label: security@joomla.org
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-15T19:28:04.086657Z'
cvssSource: cna
ingestedAt: '2026-09-15T19:42:58.810Z'
epss: 0.00428
epssPercentile: 0.34318
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.