---
id: CVE-2025-15671
title: >-
  The Welcart e-Commerce WordPress plugin before 2.12.1 does not regenerate the
  session identifier on authentication and sets the session identifier from a
  user-supplied request parameter, allowing an unauthenticated attacker to
  fixate a s…
summary: >-
  The Welcart e-Commerce WordPress plugin before 2.12.1 does not regenerate the
  session identifier on authentication and sets the session identifier from a
  user-supplied request parameter, allowing an unauthenticated attacker to
  fixate a s…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'
cwe:
  - CWE-287
published: '2026-08-21'
updated: '2026-09-29'
sourceUpdated: '2026-09-29T10:10:00.263'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-15671'
references:
  - url: 'https://wpscan.com/vulnerability/3b2d4e7f-1e2a-4712-af9b-50080106d52c/'
    label: contact@wpscan.com
tags:
  - nvd
ingestedAt: '2026-09-29T10:31:36.305Z'
epss: 0.00305
epssPercentile: 0.20859
---

## Overview

The Welcart e-Commerce WordPress plugin before 2.12.1 does not regenerate the session identifier on authentication and sets the session identifier from a user-supplied request parameter, allowing an unauthenticated attacker to fixate a shop member's session and take over their customer account after the victim logs in through an attacker-crafted request.

## Remediation

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