WordPress
CVE-2026-2127
MEDIUM
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Arbitrary shortcode execution in the SiteOrigin Widgets Bundle plugin for WordPress affects authenticated users with Subscriber access and above due to missing capability checks in an AJAX preview function. Attackers can exploit this vulnerability to execute arbitrary shortcodes when the Post Carousel widget is present, as the required nonce is publicly exposed in the page HTML. No patch is currently available.
Technical ContextAI
This vulnerability (CWE-862: Missing Authorization) exists in the preview component. 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 acces
Affected ProductsAI
Vendor: WordPress. Product: SiteOrigin Widgets Bundle (WordPress plugin). Versions: up to 1.70.4.. Component: preview.
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
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Same weakness CWE-862 – Missing Authorization
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External POC / Exploit Code
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