CyberRota Analysis
AI-GeneratedThe Divi theme for WordPress is vulnerable to DOM-Based Stored Cross-Site Scripting (XSS) due to improper handling of the `image_src` attribute in the `et_pb_video_slider_item` shortcode. This flaw allows authenticated attackers with Contributor-level access or higher to inject malicious scripts that execute when users interact with the carousel thumbnails. WordPress site administrators using the Divi theme should prioritize patching this vulnerability to protect against potential exploitation.
Original NVD Description
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.