{"schemaVersion":3,"id":"CVE-2026-3850","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"The Divi theme for WordPress is vulnerable to Stored Cross-Site Scripting via the `redirect_url` parameter of the `et_pb_contact_form` shortcode in all versions up to, and including, 4.27.6. This is due to the `redirect_url` attribute being sanitized with `esc_attr()` instead of `esc_url()` before being rendered into the `data-redirect_url` HTML data attribute. Additionally, `redirect_url` is absent from the hardcoded `$url_options` array in `class-et-builder-element.php`, so it does not receive `esc_url_raw()` sanitization during shortcode parsing. After a successful form submission, client-side JavaScript reads this data attribute and passes it directly to `window.location.href`, executing arbitrary JavaScript from a `javascript:` URI. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that execute whenever a user submits the contact form.","dates":{"published":"2026-09-02T06:37:34.157Z","modified":"2026-09-04T02:24:56.906Z","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":0.00261,"percentile":0.16756,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.10199999999999998,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00159},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00159,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00159,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00159,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00159,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00159,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00159,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00159,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00159,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00159,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00159,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00261,"percentile":0.16756}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00159,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00159,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00159,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00159,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00261,"percentile":null},{"date":"2026-10-07T00:00:00.00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