---
id: CVE-2026-3853
title: >-
  The Divi theme for WordPress is vulnerable to DOM-Based Stored Cross-Site
  Scripting via the `image_src` attribute of the `et_pb_video_slider_item`
  shortcode in all versions up to, and including, 4.27.6
summary: >-
  The Divi theme for WordPress is vulnerable to DOM-Based Stored Cross-Site
  Scripting via the `image_src` attribute of the `et_pb_video_slider_item`
  shortcode in all versions up to, and including, 4.27.6. This is due to the
  `image_src` fie…
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
published: '2026-09-05'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T13:12:58.310'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-3853'
references:
  - url: 'https://www.divichangelog.com/divi-update/divi-4/version-4-27-7'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/d5de8f35-266f-45ce-8678-e52a33036b30?source=cve
    label: security@wordfence.com
tags:
  - nvd
epss: 0.00165
epssPercentile: 0.06142
ingestedAt: '2026-09-06T03:49:19.720Z'
---

## Overview

The Divi theme for WordPress is vulnerable to DOM-Based Stored Cross-Site Scripting via the `image_src` attribute of the `et_pb_video_slider_item` shortcode in all versions up to, and including, 4.27.6. This is due to the `image_src` field not being included in the `$url_options` whitelist (which only contains `url`, `button_link`, `button_url`), so it never receives `esc_url_raw()` at save time. On the server side, the value is rendered into a `data-image` HTML attribute using `esc_attr()`, which encodes double quotes as `"`. However, the client-side JavaScript carousel code in `custom.unified.js` reads this attribute using jQuery's `.data('image')`, which returns the browser-decoded value (with `"` decoded back to `"`). The decoded value is then concatenated directly into an HTML string and injected into the DOM via `jQuery.after()` without re-escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user hovers over the carousel thumbnail.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.