CVE-2026-2127 Missing authorization in SiteOrigin Widgets Bundle
Authenticated subscribers can execute arbitrary shortcodes due to missing capability checks in the SiteOrigin Widgets Bundle plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-2127?
CVE-2026-2127 is a medium-severity missing authorization vulnerability in gpriday SiteOrigin Widgets Bundle, published on 18 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-2127?
How do I fix CVE-2026-2127?
No fix has been published for CVE-2026-2127 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-2127 being exploited?
There is no known exploitation of CVE-2026-2127 in the wild and no public exploit code.
Sources
Also known as GHSA-6mq9-qm49-w244.