CVE-2026-19914: falha de alta gravidade em uscnanbu Welcart e-Commerce
Welcart e-Commerce <= 2.12.1 - Unauthenticated Stored Cross-Site Scripting via 'custom_order' Parameter
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.2epss 0.5%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Produtos afetados
uscnanbu · Welcart e-CommerceCVEs relacionadas — uscnanbu Welcart e-Commerce
No mesmo produto, das mais perigosas para as menos.
CVE-2026-19887HIGHWelcart e-Commerce <= 2.12.1 - Unauthenticated Arbitrary File Deletion via PHP Object Injection via 'reserve' Checkout Parameter and 'option' EDY CallbackEPSS 1.1%CVE-2021-4355HIGHWelcart e-Commerce < 2.2.8 - Missing Capabilities Check to Information DisclosureEPSS 0.8%CVE-2021-4375MEDIUMWelcart e-Commerce < 2.2.8 - Missing Capabilities Check to Information DisclosureEPSS 0.6%CVE-2023-6120MEDIUMWelcart e-Commerce <= 2.9.6 - Authenticated (Administrator+) Directory TraversalEPSS 0.5%CVE-2025-0511HIGHWelcart e-Commerce <= 2.11.9 - Unauthenticated Stored Cross-Site Scripting via name ParameterEPSS 0.4%CVE-2026-87091HIGHWelcart e-Commerce <= 2.12.2 - Unauthenticated Stored Cross-Site Scripting via Settlement Notification ParametersEPSS 0.3%
Referências
https://plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.11.34/classes/cart.class.php#L552https://plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.11.34/functions/function.php#L228https://plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.11.34/functions/utility.php#L1548https://plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.11.34/includes/order_edit_form.php#L233https://plugins.trac.wordpress.org/changeset/3673344/usc-e-shop/trunk/includes/order_edit_form.phphttps://plugins.trac.wordpress.org/changeset?old_path=%2Fusc-e-shop/tags/2.12.1&new_path=%2Fusc-e-shop/tags/2.12.2https://wordpress.org/plugins/usc-e-shop/https://www.wordfence.com/threat-intel/vulnerabilities/id/527630bf-d034-4fcd-8fbe-01b388701049?source=cve