CVE-2026-2127: Gpriday Siteorigin Widgets Bundle

Medium severity, CVSS 5.4. EPSS: 0.3% chance of exploitation in the next 30 days.

The SiteOrigin Widgets Bundle plugin for WordPress is vulnerable to unauthorized arbitrary shortcode execution in all versions up to, and including, 1.70.4. This is due to a missing capability check on the `siteorigin_widget_preview_widget_action()` function which is registered via the `wp_ajax_so_widgets_preview` AJAX action. The function only verifies a nonce (`widgets_action`) but does not check user capabilities. This makes it possible for authenticated attackers, with Subscriber-level access and above, to execute arbitrary shortcodes by invoking the `SiteOrigin_Widget_Editor_Widget` via the preview endpoint. The required nonce is exposed on the public frontend when the Post Carousel widget is present on a page, embedded in the `data-ajax-url` HTML attribute.

Affected products

• Gpriday Siteorigin Widgets Bundle: up to and including 1.70.4

Published 2026-02-18. Last modified 2026-06-17.