---
id: CVE-2026-76801
title: >-
  The FireBox – WooCommerce Popup Builder, Exit Intent Popup, Email Optin & Cart
  Abandonment plugin for WordPress is vulnerable to Remote Code Execution in all
  versions up to, and including, 3.1.10 via the value function
summary: >-
  The FireBox – WooCommerce Popup Builder, Exit Intent Popup, Email Optin & Cart
  Abandonment plugin for WordPress is vulnerable to Remote Code Execution in all
  versions up to, and including, 3.1.10 via the value function. This is due to a
  …
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-269
vendor: fireplugins
product: >-
  FireBox – WooCommerce Popup Builder, Exit Intent Popup, Email Optin & Cart
  Abandonment
affected:
  - >-
    firebox_woocommerce_popup_builder_exit_intent_popup_email_optin_cart_abandonment
    <= 3.1.10
published: '2026-09-09'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T15:33:47.627'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-76801'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/firebox/tags/3.1.10/Inc/Core/FB/Meta.php#L411
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/firebox/tags/3.1.10/Inc/Core/Migrator.php#L606
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/firebox/tags/3.1.10/Inc/Framework/Inc/Base/Conditions/Conditions/PHP.php#L36
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/firebox/tags/3.1.10/Inc/Framework/Inc/Base/Executer.php#L231
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3666018%40firebox&new=3666018%40firebox
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/9c1d8ec3-de01-4496-8d8b-b9604f952b1e?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-09T13:55:52.959167Z'
ingestedAt: '2026-09-09T02:57:45.160Z'
epss: 0.00939
epssPercentile: 0.59204
---

## Overview

The FireBox – WooCommerce Popup Builder, Exit Intent Popup, Email Optin & Cart Abandonment plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 3.1.10 via the value function. This is due to a trivially bypassable regex blacklist in Executer::allowedToRun() that fails to block WordPress core functions such as wp_insert_user, update_option, and file_put_contents, combined with no sanitization of PHP condition rule values stored via the firebox_meta REST endpoint. This makes it possible for authenticated attackers, with author-level access and above, to execute code on the server. On sites upgraded from a version prior to 3.1.10, the Migrator::preserveCampaignRoleAccess() function automatically grants the edit_fireboxes and publish_fireboxes capabilities to the Author role, lowering the effective entry point to Author-level access.

## Remediation

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