Unauthenticated Order Settlement in Welcart e-Commerce WordPress Plugin
CVE-2026-15213

5.3MEDIUM

Key Information:

Vendor

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

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-15213?

The Welcart e-Commerce plugin for WordPress is susceptible to a significant vulnerability where it fails to properly verify the authenticity of callback requests related to convenience-store and bank-transfer settlements. This flaw allows an unauthenticated attacker to change the status of an order from unpaid to settled by simply providing the order number and a status flag. Consequently, an unauthorized individual could mark their order as fulfilled without the requirement for signature verification, payment confirmation, or origin checks. This issue, particularly concerning pay-later methods, poses a serious risk of order fulfillment without actual payment, potentially leading to financial losses for merchants.

Affected Version(s)

Welcart e-Commerce 0 < 2.11.33

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-2026-15213 - Proof of Concept

References

https://wpscan.com/vulnerability/4ca89701-8abc-4ecb-9834-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pedro Pinho
WPScan
.