CVE-2026-2127

Description

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.

PUBLISHED Reserved 2026-02-06 | Published 2026-02-18 | Updated 2026-02-18 | Assigner Wordfence

Problem types

CWE-862 Missing Authorization

Product status

Timeline

Credits

Nguyen Ba Hung finder

References

www.wordfence.com/...-ca76-4af7-a1e4-585a60b03153?source=cve

plugins.trac.wordpress.org/...gs/1.70.4/base/inc/actions.php

plugins.trac.wordpress.org/...gs/1.70.4/base/inc/actions.php

plugins.trac.wordpress.org/...ost-carousel/post-carousel.php

plugins.trac.wordpress.org/...70.4/widgets/editor/editor.php

plugins.trac.wordpress.org/...%2Ftrunk&sfp_email=&sfph_mail=

cve.org (CVE-2026-2127)

nvd.nist.gov (CVE-2026-2127)

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