CVE-2026-76801

{"id": "CVE-2026-76801", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-76801", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-09-09T13:55:52.959167Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@wordfence.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security@wordfence.com", "affectedData": [{"vendor": "fireplugins", "product": "FireBox \u2013 WooCommerce Popup Builder, Exit Intent Popup, Email Optin & Cart Abandonment", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "3.1.10"}], "defaultStatus": "unaffected"}]}], "published": "2026-09-09T03:17:24.943", "references": [{"url": "https://plugins.trac.wordpress.org/browser/firebox/tags/3.1.10/Inc/Core/FB/Meta.php#L411", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/firebox/tags/3.1.10/Inc/Core/Migrator.php#L606", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/firebox/tags/3.1.10/Inc/Framework/Inc/Base/Conditions/Conditions/PHP.php#L36", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/firebox/tags/3.1.10/Inc/Framework/Inc/Base/Executer.php#L231", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/changeset?reponame=&old=3666018%40firebox&new=3666018%40firebox", "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/9c1d8ec3-de01-4496-8d8b-b9604f952b1e?source=cve", "source": "security@wordfence.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security@wordfence.com", "description": [{"lang": "en", "value": "CWE-269"}]}], "descriptions": [{"lang": "en", "value": "The FireBox \u2013 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."}], "lastModified": "2026-09-09T15:33:47.627", "sourceIdentifier": "security@wordfence.com"}