CVE-2025-15671

Welcart e-Commerce < 2.12.1 - Session Fixation via uscesid Parameter

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.

Affected

Welcart e-Commerce

CVSS v3.1 CNA

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS

0.30% chance of exploitation in the next 30 days, 22nd percentile

Published

2026-08-21

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/3b2d4e7f-1e2a-4712-af9b-50080106d52c/

References

• CVE Record
• NVD entry