High severity7.2NVD Advisory· Published Sep 1, 2026· Updated Sep 1, 2026
CVE-2026-19914
CVE-2026-19914
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <=2.12.1
Patches
Vulnerability mechanics
References
8- plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.11.34/classes/cart.class.phpnvd
- plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.11.34/functions/function.phpnvd
- plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.11.34/functions/utility.phpnvd
- plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.11.34/includes/order_edit_form.phpnvd
- plugins.trac.wordpress.org/changeset/3673344/usc-e-shop/trunk/includes/order_edit_form.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- wordpress.org/plugins/usc-e-shop/nvd
- www.wordfence.com/threat-intel/vulnerabilities/id/527630bf-d034-4fcd-8fbe-01b388701049nvd
News mentions
1- Wordfence Intelligence Weekly WordPress Vulnerability Report (August 31, 2026 to September 6, 2026)Wordfence Blog · Sep 10, 2026