CVE-2026-8791

{"id": "CVE-2026-8791", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-8791", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-29T15:21:57.742541Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security@wordfence.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 3.1}]}, "affected": [{"source": "security@wordfence.com", "affectedData": [{"vendor": "ameliabooking", "product": "Booking System Trafft", "versions": [{"status": "affected", "version": "<= 1.0.17"}], "defaultStatus": "unaffected"}]}], "published": "2026-07-29T11:16:50.690", "references": [{"url": "https://plugins.trac.wordpress.org/browser/booking-system-trafft/tags/1.0.17/trafft.php#L139", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/booking-system-trafft/tags/1.0.17/trafft.php#L155", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/booking-system-trafft/tags/1.0.17/trafft.php#L176", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/booking-system-trafft/tags/1.0.17/trafft.php#L325", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/booking-system-trafft/tags/1.0.17/trafft.php#L354", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/booking-system-trafft/trunk/trafft.php#L139", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/booking-system-trafft/trunk/trafft.php#L155", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/booking-system-trafft/trunk/trafft.php#L176", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/booking-system-trafft/trunk/trafft.php#L325", "source": "security@wordfence.com"}, {"url": "https://plugins.trac.wordpress.org/browser/booking-system-trafft/trunk/trafft.php#L354", "source": "security@wordfence.com"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e93060cf-2df3-4d45-a1f2-304f443d58bc?source=cve", "source": "security@wordfence.com"}], "vulnStatus": "Received", "weaknesses": [{"type": "Secondary", "source": "security@wordfence.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "The Booking System Trafft plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `bookingWebsiteUrl` setting in all versions up to, and including, 1.0.17 due to a missing capability check on the `set_options` AJAX action when the plugin is operating in agency mode. The `trafftSetOptions()` handler verifies a nonce that is exposed to any authenticated user (it is printed inline on every admin page, including profile.php) but performs no capability check before calling `update_option('trafft_option', ['bookingWebsiteUrl' => ...])`. This setting is then used by `trafftAdminAssets()` to enqueue `<bookingWebsiteUrl>/embed.js` as a script on every front-end page that renders the booking shortcode. This makes it possible for authenticated attackers, with Subscriber-level access and above, to point the embed-script URL at an attacker-controlled origin and execute arbitrary JavaScript in the browser of every site visitor (including admins)."}], "lastModified": "2026-07-29T16:17:58.353", "sourceIdentifier": "security@wordfence.com"}