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.
History

Tue, 01 Sep 2026 22:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 01 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Uscnanbu
Uscnanbu welcart E-commerce
Wordpress
Wordpress wordpress
Vendors & Products Uscnanbu
Uscnanbu welcart E-commerce
Wordpress
Wordpress wordpress

Tue, 01 Sep 2026 09:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Welcart e-Commerce <= 2.12.1 - Unauthenticated Stored Cross-Site Scripting via 'custom_order' Parameter
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published: 2026-09-01T09:28:20.204Z

Updated: 2026-09-01T15:11:43.962Z

Reserved: 2026-08-14T20:15:43.186Z

Link: CVE-2026-19914

cve-icon Vulnrichment

Updated: 2026-09-01T15:11:38.648Z

cve-icon NVD

Status : Deferred

Published: 2026-09-01T10:17:12.843

Modified: 2026-09-01T20:47:54.130

Link: CVE-2026-19914

cve-icon Redhat

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