🔐 CVE Alert

CVE-2026-19914

HIGH 7.2

Welcart e-Commerce <= 2.12.1 - Unauthenticated Stored Cross-Site Scripting via 'custom_order' Parameter

CVSS Score
7.2
EPSS Score
0.0%
EPSS Percentile
0th

The Welcart e-Commerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'custom_order' parameter in all versions up to, and including, 2.12.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The injected payload is delivered via the guest checkout form, requiring no authentication, and executes when an administrator views the affected order in the WordPress admin panel.

CWE CWE-79
Vendor uscnanbu
Product welcart e-commerce
Published Sep 1, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

uscnanbu / Welcart e-Commerce
0 ≤ 2.12.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/527630bf-d034-4fcd-8fbe-01b388701049?source=cve wordpress.org: https://wordpress.org/plugins/usc-e-shop/ plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.11.34/includes/order_edit_form.php#L233 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.11.34/functions/function.php#L228 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.11.34/classes/cart.class.php#L552 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.11.34/functions/utility.php#L1548 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3673344/usc-e-shop/trunk/includes/order_edit_form.php plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?old_path=%2Fusc-e-shop/tags/2.12.1&new_path=%2Fusc-e-shop/tags/2.12.2

Credits

Afifudin Maarif