Vulnerability · Published Sep 9, 2026 · Assigned by Wordfence

CVE-2026-76801FireBox <= 3.1.10 - Authenticated (Author+) Remote Code Execution to Privilege Escalation

High 8.8

In plain English

A high-severity privilege mismanagement in FireBox – WooCommerce Popup Builder, Exit Intent Popup, Email Optin & Cart Abandonment from fireplugins. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.9%top 38.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
fireplugins	FireBox – WooCommerce Popup Builder, Exit Intent Popup, Email Optin & Cart Abandonment	0 – through 3.1.10

Weakness: CWE-269 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

In plain English

Official description

Affected products (as reported)

References