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CVE-2026-82190— Joomla Extension - j2commerce.com - Predictable/forgeable order access token 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.

以下是该漏洞描述的中文翻译： Joomla 扩展 - j2commerce.com - J2Store 1.0.0-3.3.2、4.0.0-4.0.22、4.1.0-4.1.7 中订单访问令牌可预测/可伪造 任何能够获取该网站 Joomla （密钥）的人，都可以为网站上任意订单计算出一个有效的访问令牌，而无需曾下过单，从而获得该订单详情及所购数字下载内容的访客级访问权限。由于该令牌从不轮换，即使底层密钥泄露路径已被修补，只要 Joomla 的 本身未被轮换，这种暴露状态将无限期持续存在。攻击复杂度（ ）为高，因为它

CVSS 6.3 · Medium

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-2026-82190

Vulnerability Information
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Vulnerability Title
Joomla Extension - j2commerce.com - Predictable/forgeable order access token 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 - Predictable/forgeable order access token in J2Store 1.0.0-3.3.2, 4.0.0-4.0.22, 4.1.0-4.1.7 - Anyone who obtains the site's Joomla `secret` can compute a valid access token for *any* order on the site without ever having placed one, gaining guest access to that order's details and any purchased digital downloads. Because the token is never rotated, this exposure persists indefinitely even after the underlying secret-disclosure vector is patched, unless the Joomla secret itself is also rotated. The attack complexity (`AC:H`) is high because it depends on the secret already being known through a separate vector; it is not directly exploitable by an anonymous visitor with no other foothold.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1241
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-2026-82190

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III. Intelligence Information for CVE-2026-82190

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Vendor Pages for CVE-2026-82190 (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-2026-81567 8.7 HIGH Joomla Extension - j2commerce.com - Unauthenticated blind SQL injection in the storefront
CVE-2026-78081 7.1 HIGH Joomla Extension - j2commerce.com - Missing CSRF protection on cart, checkout and myprofil
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-1241

V. Comments for CVE-2026-82190

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