# Welcart e-Commerce <= 2.12.4 - Cross-Site Request Forgery to Member Account Update and Login

- **ID:** WPSEC-2026-0933
- **Plugin:** Welcart e-Commerce (`usc-e-shop`), https://wordpress.org/plugins/usc-e-shop/
- **Affected versions:** all versions before 2.12.5
- **Fixed in:** 2.12.5 (Update to 2.12.5 or later.)
- **Severity:** High 8.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N)
- **Weakness:** CWE-352
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-10-14)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/usc-e-shop
- **Fix released:** 2026-10-13
- **Published:** 2026-10-14
- **URL:** https://wpsec.com/vuln/WPSEC-2026-0933/

## Description

The Welcart e-Commerce plugin for WordPress is vulnerable to Cross-Site Request Forgery via the member registration/update step (reganddeliveryinfo) and the member login on the cart page in all versions up to, and including, 2.12.4, due to the nonce check being skipped whenever a shop member is logged in. This makes it possible for unauthenticated attackers to change a logged-in member's details, including the e-mail address and password, and take over the member account, or to submit a login request for the member, via a forged request granted they can trick the member into performing an action such as clicking on a link.

## References

- https://wpsec.com/vuln/WPSEC-2026-0933/
- https://plugins.svn.wordpress.org/usc-e-shop/tags/2.12.5/
- https://wordpress.org/plugins/usc-e-shop/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-0933/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.