---
id: CVE-2026-13604
title: >-
  The Pixelavo  WordPress plugin before 1.5.4 registers an unauthenticated AJAX
  action, gated only by a nonce that it emits publicly on every front-end page,
  that forwards client-supplied event data to the configured Facebook
  Conversions A…
summary: >-
  The Pixelavo  WordPress plugin before 1.5.4 registers an unauthenticated AJAX
  action, gated only by a nonce that it emits publicly on every front-end page,
  that forwards client-supplied event data to the configured Facebook
  Conversions A…
severity: none
published: '2026-08-01'
updated: '2026-08-01'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-13604'
references:
  - url: 'https://wpscan.com/vulnerability/766c961e-e5aa-4ebe-8107-032f46316f91/'
    label: contact@wpscan.com
tags:
  - nvd
epss: 0.00294
epssPercentile: 0.19541
ingestedAt: '2026-08-02T01:16:32.442Z'
---

## Overview

The Pixelavo  WordPress plugin before 1.5.4 registers an unauthenticated AJAX action, gated only by a nonce that it emits publicly on every front-end page, that forwards client-supplied event data to the configured Facebook Conversions API using the administrator's stored access token. This allows an unauthenticated visitor to inject arbitrary conversion events into the administrator's Facebook ads account and exhaust the configured API quota.

## Remediation

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