---
id: CVE-2026-77765
title: >-
  The Better Payment  WordPress plugin before 2.3.4 does not validate the
  submitted payment amount server-side against the merchant's configured fixed
  price before building the gateway charge, allowing unauthenticated users to
  pay an arbit…
summary: >-
  The Better Payment  WordPress plugin before 2.3.4 does not validate the
  submitted payment amount server-side against the merchant's configured fixed
  price before building the gateway charge, allowing unauthenticated users to
  pay an arbit…
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'
cwe:
  - CWE-284
product: Better Payment
affected:
  - better_payment < 2.3.4
published: '2026-09-23'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T18:13:31.210'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77765'
references:
  - url: 'https://wpscan.com/vulnerability/932f8c74-1ded-40ee-b1fd-a328f3626f21/'
    label: contact@wpscan.com
tags:
  - nvd
  - cve.org
epss: 0.00221
epssPercentile: 0.11248
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-23T10:46:19.942088Z'
ingestedAt: '2026-09-23T06:17:57.884Z'
---

## Overview

The Better Payment  WordPress plugin before 2.3.4 does not validate the submitted payment amount server-side against the merchant's configured fixed price before building the gateway charge, allowing unauthenticated users to pay an arbitrary reduced amount for a fixed-price item.

## Remediation

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