Vulnerability in Welcart e-Commerce — CVE-2026-120597

What to do now

No fix has been published yet. Consider disabling Welcart e-Commerce for now, or moving to an alternative.

A vulnerability was identified in Welcart e-Commerce Plugin up to 2.12.6 on WordPress. This affects the function ESCOTT_MAIN::error_page_message of the file classes/paymentESCOTT.main.class.php. Such manipulation of the argument ResponseCd leads to cross site scripting. The attack can be launched remotely. The exploit is publicly available and might be used. Upgrading to version 2.12.7 mitigates this issue. It is recommended to upgrade the affected component. The value is now escaped with esc_html() before output. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

This description is reproduced verbatim from the public vulnerability record.

• https://github.com/bevennyamande/welcart-poc
• https://vuldb.com/cve/CVE-2026-120597
• https://vuldb.com/submit/1039186
• https://vuldb.com/vuln/429933
• https://vuldb.com/vuln/429933/cti
• https://wordpress.org/plugins/usc-e-shop/

This page is compiled automatically from public databases. Accuracy is not guaranteed; confirm against the vendor advisory before acting.