---
id: CVE-2026-119166
title: >-
  Welcart e-Commerce <= 2.12.5 - Account Takeover via Insecure Direct Object
  Reference to Unauthenticated User Input via 'member[ID]' Parameter
summary: >-
  The Welcart e-Commerce plugin for WordPress is vulnerable to Insecure Direct
  Object Reference in all versions up to, and including, 2.12.5 via the
  'member[ID]' parameter due to missing validation on a user controlled key.
  This makes it p…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-287
vendor: uscnanbu
product: Welcart e-Commerce
affected:
  - welcart_e-commerce <= 2.12.5
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-11-03T18:57:35.814898Z'
published: '2026-10-31'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T18:58:34.797Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-119166'
references:
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/e93b0ebf-576d-48d0-95f7-87135f45980f?source=cve
  - url: >-
      https://plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.12.5/classes/usceshop.class.php#L4470
  - url: >-
      https://plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.12.5/classes/usceshop.class.php#L5509
  - url: >-
      https://plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.12.5/classes/usceshop.class.php#L5070
  - url: >-
      https://plugins.trac.wordpress.org/browser/usc-e-shop/tags/2.12.5/classes/usceshop.class.php#L3848
  - url: 'https://plugins.trac.wordpress.org/changeset/3760784/usc-e-shop'
  - url: >-
      https://plugins.trac.wordpress.org/changeset/3760784/usc-e-shop/trunk/classes/usceshop.class.php
tags:
  - cve.org
epss: 0.00289
epssPercentile: 0.21585
ingestedAt: '2026-11-05T20:33:06.374Z'
---

## Overview

The Welcart e-Commerce plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.12.5 via the 'member[ID]' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to overwrite any existing Welcart shop-member account's email address and password by supplying that member's numeric ID, then authenticate as that member to achieve full account takeover. The only authentication barrier is a wp_verify_nonce() check against a nonce printed to every unauthenticated visitor on the auto-published New Enrollment Form, meaning no existing account, no WordPress login, and no non-default configuration is required to exploit this vulnerability.

## Affected

- `welcart_e-commerce <= 2.12.5`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.