Payment Processing Flaw in Nexi XPay Build Plugin for WordPress
CVE-2026-82211

8.2HIGH

Key Information:

Vendor

WordPress
Status
Nexi Xpay Build
Vendor
CVE Published:
7 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-82211?

The Nexi XPay Build plugin for WordPress, up to version 7.6.2, is susceptible to an improper input validation vulnerability. This issue allows attackers to manipulate the payment results supplied to several unauthenticated routes within the plugin. As a result, malicious actors can mark orders as paid or failed, cancel orders, and retrieve sensitive order keys, thereby compromising the personal information of guest buyers. It is essential for users of this plugin to implement necessary security measures to mitigate potential exploits.

Affected Version(s)

Nexi XPay Build 7.0.0 <= 7.6.2

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-2026-82211 - Proof of Concept

References

https://wpscan.com/vulnerability/c1ab38b4-2445-4a56-a47e-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
8.2
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
Low
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

Naoki Kawahigashi
WPScan
.