CVE-2026-66461 HIGH

CVE-2026-66461: WordPress SMEPay: UPI Gateway for WooCommerce plugin <= 1.0.5 - Payment Bypass vulnerability

Vendor Smepay
Product SMEPay: UPI Gateway for WooCommerce
Weakness CWE-862 · Missing authorization
Published August 13, 2026
Last update August 13, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

What the vulnerability does

01Description

Unauthenticated Broken Access Control in SMEPay: UPI Gateway for WooCommerce <= 1.0.5 versions.

Explanation of Vulnerability in Simple Terms

02Summary

The SMEPay UPI Gateway for WooCommerce plugin through version 1.0.5 lacks proper authorization checks on sensitive operations. An attacker can modify payment data or transaction records without authentication, potentially altering order amounts, payment status, or customer information. This affects all installations of the plugin up to the stated version.

What an attacker can do

03Attacker Capabilities

Modify payment records, order amounts, or transaction status without logging in.

Potential impact on your site

04Site Impact

Attackers can alter payment data, causing financial discrepancies, fraudulent transactions, or loss of revenue.

Conditions required to exploit

05Prerequisites

Network access to the WooCommerce site; no authentication or user interaction required.

Key dates

06Disclosure timeline

August 13, 2026 CVE published