{"schemaVersion":3,"id":"CVE-2026-8791","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"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).","dates":{"published":"2026-07-29T09:31:15.606Z","modified":"2026-07-29T15:22:28.952Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.4,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.4,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.4,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"wordfence","score":6.4,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00419,"percentile":0.34832,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.185,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00234},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00419,"percentile":0.34832}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00234,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00419,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score"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