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CVE-2026-81567— Joomla Extension - j2commerce.com - Unauthenticated blind SQL injection in the storefront product list in J2Store 1.0.0-3.3.2, 4.0.0-4.0.22, 4.1.0-4.1.7

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.

Joomla 扩展 - j2commerce.com - J2Store 1.0.0 至 3.3.2、4.0.0 至 4.0.22、4.1.0 至 4.1.7 版本中，店面商品列表存在未认证的盲注 SQL 注入漏洞。攻击者无需认证，即可通过布尔型或时间型推断方式，任意提取数据库内容（例如客户记录、订单数据、存储的凭据/令牌等）。该漏洞存在于任何公开店面中，只要该店面暴露了标准的商品列表或商品标签筛选功能，即可能被利用。

CVSS 8.7 · High

Affected Version Matrix 3

VendorProduct Version RangeStatus
j2commerce.com J2Store extension for Joomla 1.0.0-3.3.22 affected
4.0.0-4.0.22 affected
4.1.0-4.1.7 affected
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I. Basic Information for CVE-2026-81567

Vulnerability Information
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Vulnerability Title
Joomla Extension - j2commerce.com - Unauthenticated blind SQL injection in the storefront product list in J2Store 1.0.0-3.3.2, 4.0.0-4.0.22, 4.1.0-4.1.7
Source: CVE Program / CVE List V5
Vulnerability Description
Joomla Extension - j2commerce.com - Unauthenticated blind SQL injection in the storefront product list in J2Store 1.0.0-3.3.2, 4.0.0-4.0.22, 4.1.0-4.1.7 - Unauthenticated, blind extraction of arbitrary database content (e.g. customer records, order data, stored credentials/tokens) via boolean- or time-based inference, reachable on any public storefront that exposes the standard product listing or product-tags filter.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
j2commerce.com J2Store extension for Joomla 1.0.0-3.3.22 -

II. Public POCs for CVE-2026-81567

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III. Intelligence Information for CVE-2026-81567

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Vendor Pages for CVE-2026-81567 (1)

Same Patch Batch · j2commerce.com · 2026-09-15 · 6 CVEs total

CVE-2026-82189 8.7 HIGH Joomla Extension - j2commerce.com - Any order can be marked Failed by anyone in J2Store 1.
CVE-2026-81568 8.7 HIGH Joomla Extension - j2commerce.com - Arbitrary file read via `task=download` in J2Store 1.0
CVE-2026-78081 7.1 HIGH Joomla Extension - j2commerce.com - Missing CSRF protection on cart, checkout and myprofil
CVE-2026-82190 6.3 MEDIUM Joomla Extension - j2commerce.com - Predictable/forgeable order access token in J2Store 1.
CVE-2026-82191 5.3 MEDIUM Joomla Extension - j2commerce.com - Unescaped request data reflected into PayPal notify re

IV. Related Vulnerabilities

Same product: J2Store extension for Joomla
Same vendor: j2commerce.com
Same weakness: CWE-89

V. Comments for CVE-2026-81567

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