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CVE-2026-78069— Joomla Extension - j2commerce.com - Missing authorization on Apps controller delegation chain in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6

Quick assessment

Affected
j2commerce.com J2Store extension for Joomla
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

以下是该漏洞描述的中文翻译： Joomla 扩展 - j2commerce.com - J2Store 1.0.0-3.3.21、4.0.0-4.0.21、4.1.0-4.1.6 中 Apps 控制器委托链缺少授权检查 的 委托路径在实例化应用插件控制器时，整个代码路径中均无访问控制列表（ACL）检查。目前该路径仅因 中针对单数形式 ACL 键 的通配符拒绝规则（即由于不存在显式允许规则而生效的通配符拒绝）间接返回 403 错误，而非出于任何刻意设计的检查逻辑。 在该路径背后， 使用受调用方影响的表名且未设置允许列

CVSS 9.5 · Critical EPSS 0.24% · P15

Affected Version Matrix 3

VendorProduct Version RangeStatus
j2commerce.com J2Store extension for Joomla 1.0.0-3.3.21 affected
4.0.0-4.0.21 affected
4.1.0-4.1.6 affected
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I. Basic Information for CVE-2026-78069

Vulnerability Information
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Vulnerability Title
Joomla Extension - j2commerce.com - Missing authorization on Apps controller delegation chain in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6
Source: CVE Program / CVE List V5
Vulnerability Description
Joomla Extension - j2commerce.com - Missing authorization on Apps controller delegation chain in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6 - `J2StoreControllerApps`'s `appTask` delegation path instantiates app-plugin controllers with no ACL check anywhere in the code. It currently returns 403 only as a side effect of `fof.xml`'s wildcard-deny resolving under the singularised ACL key `app`, which has no explicit allow rule — not because of any deliberate check. Behind that path, `applocalizationdata::getInstallerTool()` used a caller-influenced table name with no allow-list, both to select a `#__j2store_*` table for truncation and to build a path to SQL files it then executes — a path-traversal-capable file read/execute.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
j2commerce.com J2Store extension for Joomla 1.0.0-3.3.21 -

II. Public POCs for CVE-2026-78069

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III. Intelligence Information for CVE-2026-78069

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Vendor Pages for CVE-2026-78069 (1)

Same Patch Batch · j2commerce.com · 2026-09-03 · 5 CVEs total

CVE-2026-78064 8.8 HIGH Joomla Extension - j2commerce.com - Anonymous cart-record tampering via inherited FOF `sav
CVE-2026-77999 8.7 HIGH Joomla Extension - j2commerce.com - Unauthenticated PayPal callback forgery leading to ord
CVE-2026-78065 7.1 HIGH Joomla Extension - j2commerce.com - Guest checkout address disclosure to any authenticated
CVE-2026-78000 5.3 MEDIUM Joomla Extension - j2commerce.com - Open redirect in cart controller in J2Store 1.0.0-3.3.

IV. Related Vulnerabilities

Same product: J2Store extension for Joomla
Same vendor: j2commerce.com
Same weakness: CWE-862

V. Comments for CVE-2026-78069

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