EUVD-2026-74567
GHSA-48j6-7xh6-vcfv
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Network-reachable REST endpoint, trivial blacklist bypass (AC:L), Author-level auth required (PR:L), full server code execution impacts all CIA metrics.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
3DescriptionCVE.org
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.
Articles & Coverage 2
AnalysisAI
Remote code execution in FireBox - WooCommerce Popup Builder (all versions ≤ 3.1.10) allows authenticated Author-level attackers to execute arbitrary PHP on the server by injecting unsanitized PHP expressions into campaign condition rules via the firebox_meta REST endpoint. The plugin's Executer::allowedToRun() blacklist (Executer.php L231) uses a trivially bypassable regex that permits WordPress core functions such as wp_insert_user, update_option, and file_put_contents, which the value function in the PHP Conditions class then evaluates directly. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated WordPress account with Author-level access or higher and the `edit_fireboxes` and `publish_fireboxes` capabilities. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) accurately characterizes the threat: network-reachable, low complexity, requiring only low-privilege (Author-level) authentication, with full CIA triad compromise. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update the FireBox plugin to the first version released after 3.1.10 (the exact patched release tag is not independently confirmed from available data - verify via the WordPress plugin dashboard or the FirePlugins changelog). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: confirm whether FireBox version ≤3.1.10 is installed across your WooCommerce instances and audit all Author-level user accounts in WordPress for unauthorized or unexpected entries. …
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Same weakness CWE-269 – Improper Privilege Management
View allSame technique Privilege Escalation
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External POC / Exploit Code
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