Web Payment Vulnerability in Conekta Payment Gateway Plugin for WordPress
CVE-2026-16738

Currently unrated

Key Information:

Vendor

WordPress
Status
Conekta Payment Gateway
Vendor
CVE Published:
22 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-16738?

The Conekta Payment Gateway plugin for WordPress versions prior to 6.2.2 contains a serious security flaw where it fails to authenticate incoming webhook notifications from the payment gateway. This oversight allows attackers to manipulate order statuses by marking any order as paid without proper verification of the payment amount or its association with the correct order. This vulnerability can lead to unauthorized access, fraudulent transactions, and revenue loss, making it imperative for users to update to the latest version to safeguard against potential exploitation.

Affected Version(s)

Conekta Payment Gateway 0 < 6.2.2

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-2026-16738 - Proof of Concept

References

https://wpscan.com/vulnerability/89a2917e-032c-4f0f-be44-...
exploitvdb-entrytechnical-description

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pedro Pinho
WPScan
.