Auth bypass in Welcart E-Commerce
CVE-2025-15671
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.
Vulnerability class: Broken Authentication
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.
Affected products
- Unknown Welcart E-commerce
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2025-15671?
- CVE-2025-15671 is a medium-severity vulnerability in Welcart E-Commerce, classified under Improper Authentication. CVSS score: 5.4/10. Published 2026-08-21.
- How severe is CVE-2025-15671?
- Medium severity. CVSS v3 base score is 5.4 out of 10.