Vulnerability · Published Aug 21, 2026 · Assigned by WPScan

CVE-2025-15671Welcart e-Commerce < 2.12.1 - Session Fixation via uscesid Parameter

Medium 5.4

In plain English

A medium-severity improper authentication in Welcart e-Commerce from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.3%top 76.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 products (as reported)

Vendor	Product	Versions
Unknown	Welcart e-Commerce	0 – before 2.12.1

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

References

https://wpscan.com/vulnerability/3b2d4e7f-1e2a-4712-af9b-50080106d52c/ exploit, vdb-entry, technical-description