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.
CVE-2026-2127 is a medium severity with CVSS 5.4 Vulnerability issue affecting the Plugin SiteOrigin Widgets Bundle. It affects Versions up to 1.70.4 and is fixed in 1.71.0.
CVE-2026-2127 is tracked for the Plugin SiteOrigin Widgets Bundle as medium severity with CVSS 5.4. The affected range is Versions up to 1.70.4. Update SiteOrigin Widgets Bundle to 1.71.0 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
so-widgets-bundle
View on wordpress.org
|
| CVE | CVE-2026-2127 |
| Patched Versions |
1.71.0
|
| Affected Versions |
Versions up to 1.70.4
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
SiteOrigin Widgets Bundle <= 1.68.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via `data-url` DOM Element Attribute
SiteOrigin Widgets Bundle <= 1.62.2 - Authenticated (Contributor+) Stored Cross-Site Scripting in Image Grid widget
SiteOrigin Widgets Bundle <= 1.61.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via SiteOrigin Blog Widget
SiteOrigin Widgets Bundle <= 1.60.0 - - Authenticated (Contributor+) Stored Cross-Site Scripting via 'siteorigin_widget' Shortcode
SiteOrigin Widgets Bundle <= 1.58.7 - Authenticated (Contributor+) Stored Cross-Site Scripting
SiteOrigin Widgets Bundle <= 1.58.3 - Authenticated (Contributor+) Stored Cross-Site Scripting
SiteOrigin Widgets Bundle <= 1.58.2 - Authenticated (Contributor+) Stored Cross-Site Scripting
SiteOrigin Widgets Bundle <= 1.58.1 - Authenticated (Contributor+) Stored Cross-Site Scripting
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