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CVE-2026-78081— Joomla Extension - j2commerce.com - Missing CSRF protection on cart, checkout and myprofile controllers 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 以及 4.1.0 至 4.1.7 版本中，购物车、结账和个人资料控制器缺少 CSRF（跨站请求伪造）防护 —— 攻击者可以利用受害者处于活跃结账会话期间，伪造请求在订单确认前静默覆盖账单或收货地址。这是后果最为严重的子场景，因为它使得攻击者有机会将已付款订单的商品重定向到其控制的地址；或者通过 方法篡改已保存的个人资料地址。与之前类似，每个伪造请求仅能以受害者自身会话的权限执行，因此不

CVSS 7.1 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

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-2026-78081

Vulnerability Information
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Vulnerability Title
Joomla Extension - j2commerce.com - Missing CSRF protection on cart, checkout and myprofile controllers 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 - Missing CSRF protection on cart, checkout and myprofile controllers in J2Store 1.0.0-3.3.2, 4.0.0-4.0.22, 4.1.0-4.1.7 - A forged request riding a victim's active checkout session could silently overwrite the billing or shipping address before order confirmation — the most consequential sub-case, since it opens the door to redirecting a paid order's goods to an attacker-controlled address — or tamper with a saved profile address via `saveAddress()`. As before, each forged request executes with only the victim's own session privileges, so there is no cross-account data access.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
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-2026-78081

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III. Intelligence Information for CVE-2026-78081

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Vendor Pages for CVE-2026-78081 (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-2026-82190 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-352

V. Comments for CVE-2026-78081

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