Session Fixation Vulnerability in Welcart e-Commerce Plugin for WordPress
CVE-2025-15671

5.4MEDIUM

Key Information:

Vendor

WordPress
Status
Welcart E-commerce
Vendor
CVE Published:
21 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-15671?

The Welcart e-Commerce plugin for WordPress prior to version 2.12.1 is susceptible to a session fixation vulnerability. This allows an unauthenticated attacker to manipulate the session identifier by supplying a crafted request parameter. Consequently, if a victim logs in after being lured, the attacker can take control of the victim's shop account, resulting in unauthorized access and actions within the e-commerce environment.

Affected Version(s)

Welcart e-Commerce 0 < 2.12.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-15671 - Proof of Concept

References

https://wpscan.com/vulnerability/3b2d4e7f-1e2a-4712-af9b-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

bRpsd
WPScan
.