In the Elementor Website Builder WordPress plugin before 3.1.4, the heading widget (includes/widgets/heading.php) accepts a ‘header_size’ parameter. Although the element control lists a fixed set of possible html tags, it is possible for a user with Contributor or above permissions to send a modified ‘save_builder’ request with this parameter set to ‘script’ and combined with a ‘title’ parameter containing JavaScript, which will then be executed when the saved page is viewed or previewed.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Elementor Plugin | — | Update elementor plugin to version 3.1.4, or a newer patched version | May 15, 2025 | Mar 17, 2021 |
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