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    CVE-2026-78000

    Joomla Extension - j2commerce.com - Reflected XSS via `filter_tag`, `pricefrom` and `priceto` in J2Store 1.0.0-3.3.21, 4.0.0-4.0.21, 4.1.0-4.1.6 - Four task handlers accepted a base64-encoded URL from user input and redirected to it without validating the destination host, enabling phishing using the shop's trusted domain. No authentication required.

    Published:Sep 3, 2026
    Last Modified:Sep 3, 2026
    EPS:Sep 3, 2026
    EPSS Score:
    CVSS Score:5.3

    Affected Products

    Vendor
    J2commerce.com
    Product
    J2store Extension For Joomla

    Exploits

    No exploit reference

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    CVE-2026-78064 (CVSS 8.8) — Joomla Extension - j2commerce.com - Anonymous cart-record tampering via inherited FOF `save` task in J2Store 1…
    CVE-2026-67361 (CVSS 6.9) — Joomla Extension - j2commerce.com - Unauthenticated file upload with missing directory protection in J2Store 1…
    CVE-2026-74252 (CVSS 8.6) — Joomla Extension - j2commerce.com - Stored XSS in Guest checkout in J2Store 1.0.0-3.3.20, 4.0.0-4.0.20, 4.1.0-…
    CVE-2026-67358 (CVSS 5.3) — Joomla Extension - j2commerce.com - Download quota manipulation in J2Store 1.0.0-3.3.20, 4.0.0-4.0.20, 4.1.0-4…
    CVE-2026-67362 (CVSS 5.1) — Joomla Extension - j2commerce.com - Open redirect in cart controller in J2Store 1.0.0-3.3.20, 4.0.0-4.0.20, 4.…
    CVE-2026-67359 (CVSS 8.7) — Joomla Extension - j2commerce.com - Order content disclosure J2Store 1.0.0-3.3.20, 4.0.0-4.0.20, 4.1.0-4.1.5 -…
    CVE-2026-67360 (CVSS 6.3) — Joomla Extension - j2commerce.com - Cross-customer order replication in J2Store 1.0.0-3.3.20, 4.0.0-4.0.20, 4.…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High