---
id: CVE-2026-87837
title: >-
  Wava Payment 0.3.1 - 0.3.9 - Unauthenticated Order Status Change via Payment
  Webhook
summary: >-
  The Wava Payment Plugin WordPress plugin before 0.3.10 does not verify the
  authenticity of incoming payment-provider notifications, nor restrict who may
  send them, allowing unauthenticated attackers to change the status of any
  WooCommerc…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'
cvssSource: adp
cwe:
  - CWE-862
product: Wava Payment Plugin
affected:
  - wava_payment_plugin >= 0.3.1 < 0.3.10
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-21T10:15:43.253585Z'
published: '2026-10-21'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T10:35:01.724Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-87837'
references:
  - url: 'https://wpscan.com/vulnerability/76da1b69-aa79-4e9e-a97a-bbaefdeb65fe/'
tags:
  - cve.org
ingestedAt: '2026-10-21T06:42:48.173Z'
epss: 0.00247
epssPercentile: 0.15896
---

## Overview

The Wava Payment Plugin WordPress plugin before 0.3.10 does not verify the authenticity of incoming payment-provider notifications, nor restrict who may send them, allowing unauthenticated attackers to change the status of any WooCommerce order in the store, including marking an unpaid order as paid and completed, and cancelling other customers' orders.

In versions up to 0.3.7 the response additionally returns the affected order's billing details, disclosing customer names, addresses, email addresses and phone numbers to the same unauthenticated caller.

## Affected

- `wava_payment_plugin >= 0.3.1 < 0.3.10`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.