Authentication Bypass in UPI QR Code Payment Gateway Plugin for WordPress
CVE-2026-84169

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Upi Qr Code Payment Gateway
Vendor
CVE Published:
5 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-84169?

The UPI QR Code Payment Gateway Plugin for WordPress, up to version 1.4.3, is susceptible to an authentication bypass vulnerability. This flaw allows unauthenticated attackers to manipulate payment-confirmation requests, enabling them to falsely mark any order as paid without completing the payment process. This can lead to unauthorized fund transfers and financial loss for businesses that rely on the plugin for processing transactions.

Affected Version(s)

UPI QR Code Payment Gateway 0 <= 1.4.3

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-2026-84169 - Proof of Concept

References

https://wpscan.com/vulnerability/94a90832-4cf9-4664-9086-...
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
.