---
id: CVE-2026-119749
title: GetPaid WordPress Plugin < 2.8.63 Negative Quantity Payment Bypass
summary: >-
  The GetPaid plugin for WordPress before 2.8.63 contains an improper input
  validation vulnerability that allows unauthenticated attackers to bypass
  payment processing by submitting a negative item quantity on a public payment
  form. Attack…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-1284
vendor: AyeCode Ltd
product: 'Payment forms, Buy now buttons, and Invoicing System | GetPaid'
affected:
  - payment_forms_buy_now_buttons_and_invoicing_system_getpaid < 2.8.63
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-11-04T20:26:18.649994Z'
published: '2026-11-04'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T20:26:46.658Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-119749'
references:
  - url: 'https://wordpress.org/plugins/invoicing/#developers'
    label: WordPress Changelog
  - url: >-
      https://www.vulncheck.com/advisories/getpaid-wordpress-plugin-negative-quantity-payment-bypass
    label: >-
      VulnCheck Advisory: GetPaid WordPress Plugin < 2.8.63 Negative Quantity
      Payment Bypass
tags:
  - cve.org
ingestedAt: '2026-11-05T21:36:00.558Z'
---

## Overview

The GetPaid plugin for WordPress before 2.8.63 contains an improper input validation vulnerability that allows unauthenticated attackers to bypass payment processing by submitting a negative item quantity on a public payment form. Attackers can exploit the unchecked quantity value in process_item() to produce a negative line subtotal that reduces the invoice total to zero, causing process_free_payment() to mark the invoice as paid without any actual gateway charge.

## Affected

- `payment_forms_buy_now_buttons_and_invoicing_system_getpaid < 2.8.63`

## Remediation

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