Unauthorized Payment Processing in SUMIT Payment Gateway for WooCommerce
CVE-2026-84091

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Sumit Payment Gateway For WooCommerce
Vendor
CVE Published:
23 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-84091?

The SUMIT Payment Gateway for WooCommerce for WordPress prior to version 4.0.0 is susceptible to a security flaw that allows unauthorized marking of pending orders as paid. This occurs because the plugin fails to authenticate payment notifications from the payment provider, enabling unauthenticated users to exploit this vulnerability and manipulate payment statuses without completing the actual payment process.

Affected Version(s)

SUMIT Payment Gateway for WooCommerce 0 < 4.0.0

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-2026-84091 - Proof of Concept

References

https://wpscan.com/vulnerability/10c7a9bd-eac0-49eb-9238-...
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
.