Divi <= 4.27.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Social Media Follow 'skype_url' Shortcode Parameter
| CVE | CVE-2026-3852 |
|---|---|
| CVSS | 6.4 (Medium) |
| Publicly Published | September 2, 2026 |
| Last Updated | September 3, 2026 |
| Researcher |
Osvaldo Noe Gonzalez Del Rio (Os)
- krei.dev | ogbuilders.io
|
Description
The Divi theme for WordPress is vulnerable to Stored Cross-Site Scripting via the `skype_url` shortcode attribute of the Social Media Follow module in all versions up to, and including, 4.27.6. This is due to a three-part sanitization failure: (1) the `skype_url` field is not included in the `$url_options` whitelist in `class-et-builder-element.php`, so it never invokes `esc_url_raw()` during shortcode processing, (2) the render code in `SocialMediaFollowItem.php` explicitly skips `esc_url()` for Skype URLs (`! $is_skype ? esc_url( $url ) : $skype_url`), and (3) only `sanitize_text_field()` is applied, which preserves single and double quote characters allowing attribute breakout. The unsanitized value is interpolated directly into a single-quoted `href` attribute (`href='{$social_network_link_url}'`). 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 interacts with the injected element.
Learn more about Cross-Site Scripting vulnerabilities and how to prevent them.
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Vulnerability Details for Divi
| Software Type | Theme |
|---|---|
| Software Slug | Divi |
| Patched? | Yes |
| Remediation | Update to version 4.27.7, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Divi
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